Hi everyone welcome to Unacademy NEET and welcome to Fast Track Baths In which we are going to start the preparation of NEET 2023 Today is very special because the update has come And many kids who were not serious till now, now they have planned to become very very serious And today I want you to keep a note That how excited you were today Remember today What was in my mind today How much confidence was in my mind today Because I want this confidence Till 7th May Today is 19th December And till 7th May We have to keep ourselves calm and composed We have to keep so much willpower So much dedication So much confidence That every day We feel that I can crack I had taught you There is great power in manifestation Thank you till you don't think, it can't happen so today, first of all, all the students who are watching this class they will think that yes, I will crack the neat and show you I can also do it because you have the potential you will do it, who else will do it just a little bit of smart work, a little bit of dedication a little bit of sincerity from inside, a little bit of seriousness no matter how many marks you got in 10th No matter how much you wasted 11th, no matter what you were doing till 15th December or till the date of NEET, I have nothing to do with it. I just know that if you prepare well for the coming 5 months, 4 months, stay connected with us, take regular classes, take practice sessions, no one can stop your selection. Yes kids, so let's start with this energy First of all, if you have come in the session, then like the session quickly So that the energy remains in the session And we can start today Today is a very auspicious day So we are starting, I told you the order yesterday What will be your order?
First class 12th will be completed And after that we will move towards class 11th In 12th also, first of all we have to do human reproduction, health and then SRFP That's all the aim for now You will have a regular class here. You have to bring only 3 things. Have you ever heard about PPF account? When you are a grown up, your parents will tell you to open PPF account. The rule of this class is PPF.
What you have to do is bring PPF. What does PPF mean? Pen, Paper and Focus.
You will have full class. You have to attend with focus. Everything I am writing will be based on NCERT and PYQ. You just have to keep noting down with me. The notes are already written.
It's okay, let them be written. If they are not written, then write them today. Wake up today.
Wake up in the morning. You don't know anything. No problem. You will work hard from today.
Let's see where you land up. First think that if you don't land up, then it's not possible. It's possible.
You will only crack and go, you will only fulfill your parents'dream, you will only maybe in your city, in your home, in your village, you will be the first doctor to show. Okay children, so are all the children filled with enthusiasm or not? We are going to do the first lecture on human reproduction today.
I will not see the time, how long the lecture is, it can be of one hour, one and a half, or two. It's okay, I will not watch the time, but I will watch your dedication. The intensity with which you are sitting here today should be the same intensity even after 2 hours from now It should be yesterday and also the day after tomorrow You should try to put one class Wherever you study, I had told you this morning on telegram Wherever you study, it doesn't matter to me Wherever you have taken admission, offline, online, anywhere Even if you have not taken it, you study from local coaching, you study from anywhere You should try to put a class Then decide whether you enjoyed it or not Then decide whether the learning was done in the middle of the class or not For bio, I only ask you for 1.5-2 hours. I ask for live class. After that, you give your physics and chemistry.
Give it. I say it myself. Bio cannot do anything.
Just these 2 hours, 1.5 hours. We are going to meet every day on this channel. Attend the class with this focus. Yes, children. Bring pen and paper.
Bring pen and paper. Everyone is with pen and paper. Please tell me. Please tell me.
We will make notes together If we don't make notes then we won't make a thing Till we write, we can't learn bio Remember this I will show you many things But writing is very much necessary So I am ready to write You also get ready with me The kids who don't know me yet My name is Seet Pahooja Today is the time to give introduction I have total 9 plus years of experience I have studied in very big offline coaching I am associated with Unacademy for 3 years I am associated with such a good brand Now every year so many selections have been done This year it is your turn Whenever we start the chapter, remember one thing The practice test of that chapter will be done Everyday, listen to it first The practice test of that chapter will be done Today as we are starting human reproduction So your practice test is scheduled today also I have pinned the link here Where have I pinned it? If you see here In the chat box you will see the link So enroll on this link Free class will be there I will take the practice test of that much only today At 5 pm What time? 5 pm Where it happens?
On the app of Unacademy It is absolutely free of cost Practice question will be done in poll based format So simultaneously you will enroll in this class And whenever we will start any chapter First of all we will see the trend of this chapter That in the last years Which are the topics from this chapter Out of which the most questions have come So this is the trend of human reproduction If you will see the human reproduction carefully Subtitles by the Amara.org community So, guys, 2022, 1, 2019, 2018 and 2017, I have brought the trend of the last 5 years in front of you. If we see, then, son, male reproductive system, female reproductive system, one question came in 2019 and 2017. Then, in gametogenesis, fertilization, menstrual cycle, oogenesis, and spermatogenesis, son, you are seeing the trend that how many questions have you got from which one. If I see, in 2022, how many questions had come in total? 3. If I see in 2021, then total number of questions from this chapter was 4. Means on average if we write, then from this chapter you have seen maximum 4 questions.
4 questions means how much number is there? 4 into 4, 16 marks will come from this chapter. 16, 12 to 16 marks you can complete in these 2 classes. By applying today's and tomorrow's class. So, ready for these 16 marks?
Yes, kids. But the question is... Today, history will be created. Today, history will be created.
My children will attend the best session. They will attend the best lecture. And one of the best content. Which you can see in any coaching. Best content.
Let's start. Are you ready for 16 marks? Everyone? Yes.
Quickly like the session. Because we are going to start. Yes.
Ok, let's start from Human Reproduction. Come on open the copy pen, now don't stop. The name of the chapter is 16th number, this is Human Reproduction. See this is the first unit of 12th class chapter.
The name of the first unit is Reproduction, Reproduction in Organism, SRFP, Human Reproduction and Reproductive Health. In this video specifically we will talk about humans and you know what type of reproduction humans do. If I talk about the type of reproduction of humans then humans perform sexual reproduction.
You should know that how is the reproduction of humans? Sexual reproduction. If we see in sexual reproduction also, then male and female sex are completely separate. There is no male and female sex in the same body.
Means what kind of organism is human? Human is a unisexual organism. What can we say? What kind of organism is human?
It is a unisexual organism. Unisexual organism means male and female sexes are completely separated. If we see in sexual reproduction, then one will be male sex and one will be female sex. The first step of sexual reproduction is to become gametes. Yes, there are two parents, a male parent and a female parent.
The first step is to become gametes. What do we call it? Gametogenesis. What do we call it, kids?
Gameto... genesis, means male parent will make its own gamete, here the gamete is going to be the sperm, female parent will make its own gamete, here the gamete is going to be ova, okay, gametogenesis happened, after gametogenesis, now male gamete is somehow transferred inside the female body, because in humans, internal fertilization happens, what is internal fertilization, there somehow by any kind of means, by copulatory organ, this male gamete is going to reach, the female body. It's step co. The transfer of male gamete into the body of female.
This step beta G is called as insemination. What is it called? It is called insemination.
After insemination, the male gamete went into the female body. After going into the female body, both will fuse. The process of fusing is called as fertilization. What will you say? This is called as fertilization.
Once fertilization is done, you will have a single cell structure. What will be made? Single cell structure which you call zygote. Divisions will be formed in this zygote and ultimately zygote will become embryo and embryo will be attached to the wall of female endometrium We will form a layer in the female uterus which is called endometrium This embryo will be attached to it and the process of attachment is called as implantation What do we call it? Implantation After implantation, the beautiful journey of pregnancy starts.
In humans, it is 288 days. The whole time period of pregnancy, in which a zygotic, a full young one is formed. This is called as gestation period.
What do you call it? Gestation period. After the gestation period, the baby is ready to be delivered.
And the delivery in biology, in biological terms, what do we call delivery? Delivery is called, Parturition. What is called? Parturition. So these are the steps of sexual reproduction.
These 5-6 I have written, what are these? These are the steps. What happened? Gamete was formed. Gamete was transferred in the female body.
After transfer, fertilization took place. After fertilization, attachment took place. After attachment, this whole pregnancy time period.
And then ultimately this is going to lead to the delivery of the child. And the delivery is called as Parturition. Remember these 5 steps in order.
You may get a question from here. They can do order hair-fair. Don't do it upside down. Don't do it like this. Pregnancy is happening before fertilization.
You have to fight your mind. Absolutely. Focus on the concept.
Gamete will be formed. Gamete will be fused. After that, pregnancy will happen. And in the end, what will happen? Your child will get delivery.
Okay? Let's go. After this, we have to start with the male reproductive system. Today's task is what is it? Male reproductive system.
Yes kids, you are writing right? Are you writing? Yes, starting with male reproductive system Look, whatever the reproductive system may be male or female We have to talk about two things always One is primary sex organ and other is secondary sex organ Two types of sex organ, I will teach in female also, I will teach today only So in male reproductive there will be two types of sex organs These will be primary sex organs And what else will be there? Secondary sex organs Primary sex organs are always those in which gametes are formed That means there will be gametogenesis in primary sex organs Primary sex organ is always the one that releases sex hormone.
And male sex hormone? Yes, yes, yes, son, quickly, male sex hormone. Look, if you can chat, then you can talk to me. You won't tell each other in chat.
If you can chat, then you will only talk to me. Yes, you will talk to me. So the primary sex organ in this case, where gametogenesis is also happening, sex hormone is also happening, which one is it? Yes, very big. Yes, very good, androgen.
And the major androgen which we read, that is going to be testosterone. Absolutely right. So, the primary sex organ where gametogenesis happened. What happened, children?
Gametogenesis happened. And here, your sex hormones also came. And here, the primary sex organ is going to be the pair of testes.
What will happen, son? Primary sex organ is going to be the pair of testes. Secondary sex organs will do transportation, conduction, copulation, etc.
Conduction means transportation. Copulation means insemination. Copulation, transportation, etc. will be done by secondary sex organs. Primary sex organs will have a pair of testes. What will come in secondary sex organs?
There are many things in secondary sex organs. What are they? See, in this secondary sex organ, we will get accessory ducts. We will study some extra ducts. In this, we will get glands.
Many glands will come. There are 3 major glands. And in this, we will get external genitalia.
External genitalia. Yes, children. Yes. So, today in male reproductive system, we have to study both these things. Primary sex organ and then we will move on to secondary sex organ.
So, let's start with primary sex organ. Yes, children. Tell me.
Shuru kare? Yes. Starting with the pair of testis.
Yes, pair of testis If we talk about testis, first of all, size is given by our NCRT So you have to remember the size as it is If we talk about size, then it is 4-5 cm in length 4-5 cm, remember this 4-5 cm in length and 2-3 cm in going to be width Okay, remember this much Now coming to the important things about testis Testis is a primary sex organ How many testes are there in a normal male? There are two testes If it is a primary sex organ, then it means that gametogenesis is also done here Spermatogenesis is also done here That means sperms will be formed here Now the testes are not inside the male body They are present outside the male body Yes, in a pouch That pouch is called as scrotum The testes are kept outside the body knowingly See, it is formed inside the body, when a male is being formed, when a male is in the womb of a mother, when it is being formed, when it was a fetus, when it was an embryo, when it was being formed in the testes. When it was being formed in the abdomen, but during the 7th month of gestation, when?
When it was the 7th month of pregnancy, then its testes came out of the abdomen and came down to the scrotum. Why did you do this? Why did they take it out of the body? There is a lot of logic behind this. Because sperm formation requires 2-2.5 degrees less temperature from the body.
So if they keep it inside the body, they will not get the temperature. If they don't get it, then there will be no sperm. That's why testes are situated outside the body in a pouch and the pouch is called as scrotum. So testes are a paired structure.
There will be two and the location is outside the human body and outside, son, who has it present inside a pouch and what is the name of this pouch? Scrotum. Okay, now where were the testes made? Where were they made? In the abdomen.
Where were they made? In the abdomen. Son, then what came from the abdomen?
Yes, they were put down in the seventh month. Who was put down? To this pouch.
What name have I given this pouch? Scrotum name. Okay, now son, which? They have come down from the canal See, they must have been pushed down from some tube The tube from which they have come down This is called as This is called as inguinal canal What is said? Through which they have come down They have been descended down This is called as inguinal canal And what is present inside this scrotum?
Our testis So for example This is your testis I will write T for this It is testis Yes, son, while being from the inguinal canal, it has come down. Now, when it has come down, then we will not fill the canal empty. A lot of stuff is filled in this canal.
There are special type muscles in this canal. Blood vessels will come out of this canal. The vast difference will go from this canal while being looped.
So, this canal is ultimately filled later and this becomes a spermatic cord. The singuinal canal converts into spermatic cord. Did you understand?
In the 7th month, the testis came down. Later on, everything will get filled. Blood vessel, lymph vessel, nerves, your cremaster muscles, your vas deferens.
It will fill inside this. And what will change its name? We will name it spermatic cord.
Now, how to connect this testis with the base of this scrotum? It is a matter of thought. This testis.
It is made of a fibrous cord which is called as gubernaculum. What is gubernaculum? It is nothing but a misorgium.
It means double fold of peritoneum. What will you get? Double fold of peritoneum. The kids are saying that you will not write it yourself. Until you will not raise your hand, it is very important to pick up a pen.
And there is a lot of doubt in this pen. Till you don't pick up a pen, there is no point in biology. Remember this much, there will be a discussion in the bio only when you work with this pen.
So pick up the copy pen, you will get notes, you will get notes on my telegram. It is not difficult to find. There are more than 1 lakh students who are taking regular updates and taking PDFs. I will give the PDF on telegram only but write it with your hand.
Write it with your hand, write it together only then the discussion will be made. Okay dear, you vernacular. Write.
Now let's talk about the testis which is outside the body What is it? Outside the body I told you right? Because you have to bring it down in the 7th month So what can we call the testis?
Extra abdominal testis Tell me yes or no Can we say that human testes they are extra abdominal? Extra means outside It is outside so it is extra abdominal But not all organisms have extra There are certain animals, there are certain organisms Which also have intra abdominal testes Intra abdominal testes also exist Means inside the body, inside the abdomen Ours is outside the abdomen It is also inside the abdomen In that intra-abdominal, one of the largest animals is elephant. Who else will come? Aquatic mammals. Okay kids, like whale, seal, testes are inside the abdomen.
And let me tell you, there are some seasonal breeders. When the season of their breeding comes, then the testis will come out of the body When the season goes, the testis will go back inside This is also there Have you seen this in bats? When the season comes, the testis comes out of the body And when the season goes, the testis goes back inside the body This is also a very good thing When it is necessary, take it out Otherwise, put it inside Okay And I told you that testis is paired in us But there are certain organisms which have only one testis Escharus Inside the escharus There is only one testis in human, so what is there? You can see two testis Okay, now in seventh month When?
In seventh month, testis had to enter into scrotum through abdominal inguinal canal If this didn't happen then? It is said that it should have happened Ideally it should happen But there are certain conditions in which testis can't come in seventh month It can't come failure of testis to descend from abdomen to scrotum failure of testis beta nahi ho paya us disorder ko bolte hai cryptorchidism aur agar beta testis scrotum mein nahi aaye to temperature nahi mila temperature nahi mila to sperm nahi banenge sperm nahi banenge to beta ultimately that male is going to be sterile male hai na to us disorder ka naam yaad rakhenge us disorder ka beta ji naam yaad rakhenge this is called as cryptorchidism Cryptorchidism. What is cryptorchidism? This is failure. Failure.
Failure of testis to descend. To descend from. From where?
From abdomen to scrotum. Abdomen to scrotum. This is called cryptorchidism.
Remember. In that case, the male is going to be sterile male. If it is, then it is fertile. If not, then it is sterile. Why did we keep it outside?
Because Spermatogenesis needed a higher temperature. How low? To make sperm, we need 2 to 2.5 degree lower temperature.
Lower than the body's temperature. Remember this value. 2 to 2.5 degree.
We need a temperature lower than the body. then only sperm will be formed and if it does not come down then sperm will not be formed that disorder would be called as Cryptorchidism Now, testes have come out but the temperature outside can also affect the spermatogenesis of these testes During the winter, it may be that the temperature may be more low It is the month of December outside or it is January If you are in a desert condition and the month of June and July is going on, then it may be high temperature despite being outside Means according to temperature, we have to give the proper optimum temperature to the testes For that we have two sets of muscles One muscle is inside this Such muscle is called as cremaster muscle You will do this work right? This is cremaster muscle And the second muscle here Which connects the testes to the scrotum wall This is called as Dato's muscle I am telling the names of two muscles Cremaster muscle and Dato's muscle Do you know the purpose of both of them?
When it is cold outside Bring the scrotum near the body So that it gets proper heat So that it gets proper heat and the spermatogenesis continues To keep the temperature optimum And when there is a lot of heat condition Take the scrotum away from the body so that the extra heat is released and the optimum temperature can be maintained. So I told you two muscles, which muscles? One I told you, I told you the cremaster which is in your spermatic cord.
Remember cremaster muscle and which other muscle I told you? Dato's muscle which is on the scrotal wall. Dato's muscle What is the work of both? To help in different seasons Like if we talk about winters In winters they will bring scrotum towards the body Heat has to be retained So in winters they will bring scrotum towards body We will bring towards body And if I talk about summers Summers they will Take scrotum away from the body.
Okay, kids? Away from the body. Clear?
Clear, dear. Testes'concept is clear. Tell me once. Tell me quickly.
Is it so clear or not? Oh, Hitesh is in a lot of pain. This is not in NCRT. What to do?
Why did you make me do it? Oh, dear. Did you hear the name of PYQs or not?
In NCRT. I will tell you some chapters Genetics, Human Physio Reproduction These are some units In which it is very important to go out And I will go out As much as the question can come Will you do section B or not? NCRT is an oriented class NCRT is not a reading class Reading is not the answer, NCERT is oriented The things that I am talking about NCERT has mentioned that temperature is maintained in scrotum Now, if it is not about winters and summers, then you won't tell me how it is in winters and summers Keep your avenues open You can understand NCERT line to line only if you have understood it a little beyond in class Keep your mind open Human Physio, Human Reproduction cannot be solved like this.
And you have to do these things in MBBS also. So keep the avenues open, keep faith. We are not doing much, but we are doing so much that you will not get any question wrong.
Not a single question will be wrong. Okay? And if any module comes in front of you, any mock test comes, either cut all India test series, either cut all India test series, my children should be like this that they can come in the top 100 in any all India test series. And that will only happen when we discuss all the relevant things.
All the relevant things will be discussed. Okay? So open up a little bit. It's bio, it's not easy.
But if you do it with heart, if you learn here, then it will definitely happen. Definitely it will happen. Okay? Yes?
Okay ji, you will learn a lot of new things. In today's class, I will tell you that you will learn many new things and you will take away a lot from this session. A lot from this session. I will show you NCRT also, don't worry.
But when you will do this, you will know the base of NCRT, what is its background. You will not do superficial rattas of NCRT. Rattas don't play, to know its background you...
You should know the base of human physiotherapy and human reproduction And this base is made from here The one who didn't learn the base No matter how hard he tries to do it No matter how much he studies NCRT He won't be able to learn that thing He can't learn that It is very important for you to know this background and this base So we are making the base We are making the base Don't worry about this Leave it on the ma'am If one or two extra lines are going Then it will be going for your good Okay? It will be going for your good Now let's go You understand the function of test If it is a primary sex organ, it will produce gametes i.e. spermatogenesis and will release sex hormone i.e. Testosterone.
Now let's go to LS of Testis. Longitudinal Section of Testis. Get ready for the diagram and take out the pencil. Longitudinal Section of Testis.
Yes. Longitudinal Section of Testis. Yes.
Let's start. Now what you have to do is to cut the testes longitudinally One is in the transverse section and the other is in the transverse section You have to cut it like this You don't have to cut it like this You have to cut it in length If you cut it in length, you will see that there are many lobules inside the testes There are holes and compartments And those holes and lobules are called as testicular lobules And do you know how these holes are made? It seems like the outer wall of the testes goes inside She is making a hole So the outer wall of testis The hole that will be made We call it tunica albuginea This tunica albuginea Invaginated inside Dug inside And she made a lot of compartments What we call those compartments Testicular lobule I am seeing some kids haven't come out of the world cup yet I can see The talks of Messi Yes son The talks of Messi I can see.
Yes. See this. They are making khansha. Son, do you know how many total khansha are there?
Total Khaanchay are 250 There are 250 testicular lobules But we can't make 250 here So I have made 3-4 here You can understand that there are 250 Khaanchay like this How are these Khaanchay made? Khaanchay means compartments Lobules These are divided Its outer wall has been made by pushing inside This is called Tunica Albuginia Yes This outer wall is called as Tunica Albuginia Okay Tunica Albuginia After going inside, he made these lobules, we will call them testicular lobules. Yes, what will we call them?
Testicular, we will make them together. Testicular lobules. How many are made? Testicular lobules 250. So I have written the number here.
250 testicular lobules. 250 to 300. 250 to 300 testicular lobules are made. Now we will talk about one lobule inside every testicular lobule.
Coiled darts are present in every testicular lobule What we call as seminiferous tubules How many tubules are there in one testicular lobule? There are 2-3 seminiferous tubules in one testicular lobule 3 in one So you are thinking how much will be the total? Multiply it Tell me the total of seminiferous tubules Yes Take 3 in one testicular lobule I have made a seminiferous tubule. I am making only one. By the way, it can be 2 to 3. These structures are called as seminiferous tubules.
We are labeling them simultaneously. Seminiferous tubule. How many will be there?
2 to 3 per lobule. There will be 2 to 3 in one lobule. From every seminiferous tubule, a small duct will come out.
Do you see? Yes, I have made one by one and I have made one by one duct. Yes, this duct is called as tubuli recti.
Keep understanding and keep drawing. This small duct is called as tubuli recti. Tubuli recti, make it longer. Ok, tubuli recti is here.
Now, tubuli recti will be joined. Join it. All the tubular erectile will join to form a network.
Ek beta bahut bada sa network ban jayega. Is network ko beta ji hum bolte hai retetestis. Yes, this network is called as retetestis.
Dik raha hai? Retetestis. Idhar aajatayu mai.
Haan ji beta. Yes, come on. Yahaan tak ka drop samajh aaya? Maini kya kiya hai? Tunic of the Alpuginia, inside the dorsum, made a testicular lobule These testicular lobules, inside this will be present 2-3 seminiferous tubules This is seminiferous tubule, from each tubule tubular recti will come out This tubular recti will make a network, what we call this network?
Retatestis Now small small ducts will come out of retatestis, yes Small small ducts will come out of retatestis, these are called as vasifrensia, yes These ducts are called as Vasa Efferentia. All of them will make a coiled duct. What will they make? A coiled duct. This coiled duct is called as Epididymis.
And your Vasa Efferentia will come after Epididymis. So let's label it. This is called as Vasa Efferentia.
This one is Epididymis. The three parts of the epidermis, head, leg and chest, the head is called caput, the whole body is called corpus and the lower part is called cauda. Okay, what do these three make? Epidermis and after the epidermis, there will be a vast difference.
Vast difference. Okay, yes, this is the longitudinal section of testis. Longitudinal section of testis.
Kids, who is this? Arika, there are 3, right? You can take 1-3, 2-3, whatever you want.
2-3, 75, 1-3, whatever you want. 3 is the maximum. Maximum is 3, minimum is 0. It can't be 0. Either 1 or 2 or 3. Maximum is 3. Yes, kids. So, this is your epidermis.
I have told you 3 parts of epidermis. Now in this whole diagram, where does sperm formation actually occur? It is a matter of thinking, we are talking about where the sperm of the primary sex organ will be formed. So you will say, do you know where sperm is formed? Yes, in this.
This structure that I have made, this coiled structure, this structure is the site of spermatogenesis. So do you know where the site of sperm formation is in the testes? Semeniferous tubule.
So seminiferous tubule is the actual site of spermatogenesis In this only sperm will be formed So you will remember Spermatogenesis Okay By the way there are 3 layers Vaginalis, Albuginea, Vasculosa But I will not go that much out Otherwise you will start crying more and more LSF test is done You will get all these notes on my telegram Don't worry Yes I am losing heart emojis. I don't think there is any fire in this session. Is there any fire or not? Yes, come on. There should be no fire.
You draw this in the board. Your number will not be less. Ma'am will give you 6 out of 5. You can draw this diagram without hesitation in the board.
There is no tension at all. Yes, this is the best diagram. If you see from NCERT, it will look like this but they confuse you a little But I have made you so simplified that if you ask yourself What is intra-abdominal, intra-testicular system, what is outside Where is it inside the testis, it is up to the differential and where is it outside, all this is outside Epidermis, vas deferens, all are outside The matter inside the testis is up to here Yes, okay And also like the session quickly Yes Yes, okay.
Like this session quickly because now we are going to structure the sperm. Yes, we are going to start with the structure of seminiferous tubule. Son, how many of you are there who are not at that level yet but want to crack the neet this year?
Almost all of you. Raise your hands. Raise your hands. How many of you are there?
How many kids are there who almost I don't know, they had some doubts before Their marks were not good in mock test But this year they want that I give my best for the next 4 months That I crack the neet Yes Tell me Who kids actually want to do it I think there are some kids here who don't want to do anything And just want to relax Okay And just want to chill But who are the serious kids here Who actually want to crack the neet Actually, I am ready to work hard for that Because it won't be easy, you will have to work hard Please raise your hand, I would like to tell something about them I will tell about them I have shared some lines of famous Ramdhari Singh Dinkar ji If you want to become like the sun, you have to burn as much as the sun If you want to get the respect of the rivers, you have to leave the mountains If you want to become like the sun, you have to burn as much as the sun What does it mean? It means that you have to work as hard as you have not done till now. You have to do so much penance in that heat. Understand with heat that even if you don't feel like doing it, you have to study. Even if you are sleepy, you have to study.
Even if you are getting married, you are getting function, you should stay focused. You have to get respect from the rivers. then you have to leave the mountain it doesn't mean that you have to leave the house and reach the mountains no son, it doesn't mean that it means that the things you were doing till now the wrong habits that were inside you that were stopping you from cracking the neet you have to overcome those wrong habits you have to overcome them and we are the son of that mother so why should we think that the path will be easy How much sacrifice your parents are giving you? You have to bring books for yourself, you have to connect with the internet, you might have paid for offline coaching or online.
You will understand all these pains when you start earning. You will understand the account of every penny when you start earning. Okay?
So, we are the sons of that mother. So, why should we think that the path will be easy? It will take a little more time, but the struggle will surely be successful.
Hosea... It may take time, you may be a dropper and you have spent one more year extra, you may be a second dropper and you are spending extra for the second year. So we are the son of that mother, so why should we think that life will be easy?
It will take a little more time, but the struggle will surely be successful. Every problem will be solved, today or tomorrow. Every problem will be solved, today or tomorrow. You are not able to score in today's mock test, you will score in tomorrow's. You will not be able to score in tomorrow's, you will score in the day after tomorrow.
You will be victorious one day. But that's the thing, son, hard work should not stop till 7th May. By leaving everything till 7th May, son, you should put your bio in this class one by one, son.
I will make sure that numbers below 360 cannot come to you. Cannot come. Okay? So now we will not let anyone's penance go empty. Nor will we let your parents'penance go empty.
Nor your penance. This is penance, son. You come daily and wake up at 7 am and put physics class.
You will take chemistry class at 8 pm and here at 12 pm This is your penance This is the penance of your parents who are giving you such an environment So we will not let anyone's penance go to waste Every problem will be solved Today or tomorrow Yes children So with that energy we do structure of seminiferous tubule I said that maximum 3 can be done In one testicular lobule So should I make 3 then? Yes Yes, so I am drawing three testicular lobules, pay attention Son, let me tell you one thing Physics, Chemistry, Biology, the best strong team, the whole team That Trimurti is called, you will get it in this session, on this channel, in this batch So when all three of us are getting strong in Physics, Chemistry, Biology, then why should we leave this channel? We will not leave it So first of all, the session Like the video and subscribe to the channel And don't move from here I will make you learn in the bio class Rest you give time to physics chemistry And come to the class at 5 pm Special class, practice class which will happen daily That's it, I have done the bio, rest physics chemistry Rest your revision You are sorted Let's talk about the seminiferous tribule There are three So I made one complete and two half-half Now focus on one seminiferous tribule First of all I need those cells Which you can see here Actually I will do spermatogenesis in which there will be meiotic division Means sperm mother cell So semiferous tubule is lined by dash epithelium which you will tell It is lined by dash epithelium which will function as spermatogonia Yes kids tell me I have left dash in between And I am making that shape And I am giving a hint of that shape Yes Semeniferous tubule is lined by dash type of epithelium.
Yes, bachon. It is lined by dash type of epithelium. Shape bata rahi hu bata me.
Bato bato me. These cells are called as. These cells bata ji.
These are called as spermatogonia. Kya baat hai? Spermatogonia. Ye bata animal tissues me apne log padte hai.
Kya spermatogonia is a type of. It is a. Type of germinal Epithelium What is this? Germinal Epithelium And how is the shape of this germinal epithelium? How is the shape?
Cuboidal Very good This is cuboidal epithelium And this cuboidal epithelium Will do meiosis And ultimately What will it make? It will make flagellated sperms And So, in the seminiferous tubule, there are cells that will make sperms by meiosis. Apart from this, sperm also needs nourishment. And sperm also works to save it from the immune cells coming and eating it.
And sperm also works to give proper concentration of testosterone. Those work are done by additional cells, those are called nurse cells. Those mother cells are done in a way, which we call Sertoli cells. So, there is another type of cell in the seminiferous tubule. Whose name is Sertoli cell.
Okay. Second name of Sertoli cell is nurse cells. What is the name? Nurse cells. These are also called as sustentacular cells.
Sustentacular cells. Now what are the important things that Sertoli cells do? They nourish the sperm that is being formed They give food to the sperm and tell them to stay alive You will start your next life Sertoli cells, I will tell you about hormonal control They also inhibit the coming FSH by releasing inhibin Sertoli cells release a hormone called inhibin Which stops FSH from forming Stop making more spasms So, Tully cell, testosterone is released outside This testosterone is concentrated inside Who is releasing testosterone outside? There are special type of cells outside Yes, these are endocrine cells And these cells are called as lydic cells What is their name?
Lydic cells They are present in the outer interstitial space They are taken out So these are also called interstitial cells These interstitial cells will work to release the hormone What will they do? They will extract the main hormone And that hormone is testosterone That hormone is testosterone Now testosterone, pay attention kids Now testosterone has come out It has come out We have to concentrate it inside Spermatogenesis is happening inside So we need it inside too So who will do this work? Androgen binding protein Who made this ABP? Sertoli So what else did Sertoli do? He released ABP ABP news is not a channel You reach DNA Today's daily analysis is news No son It is androgen binding protein Androgen binding protein Okay?
Yes This ABP is concentrated in testosterone With the help of ABP What the heck? Testosterone is concentrated inside the body because the sperm is being produced inside the body Next is that sperm is produced after birth Do you remember this much? Sperm starts to be produced after puberty If sperm is produced after puberty then the body will feel that this is a new cell Because if something enters our body after birth then the body feels that this is foreign Immune system comes running and says to kill it Kill the sperm Because maybe this is not our cell The immune system thinks that the cell you have since childhood is only yours After that, if any external bacteria, virus, protozoa comes, anyone comes It feels like kill it So sperm was also made later After the age of 12, after the age of 13 So the immune system thinks that the sperm has come, kill them, they have come from outside But they are the cells of the body So these are the Sertoli These are the Sertoli who protect the sperm from the immune system They protect the sperm. So, some immunocompetent cells are outside which try to kill the sperm.
But this Sertoli protects it. No, these are the cells of our body. I agree that they are made later. But we have to protect them.
What do they make? They make a barrier between blood and testis. They don't let the immune cells come in so that the sperm doesn't die. So they form blood-testis barrier.
Understood blood-testis barrier? Because in the sperm body, if it is formed after birth, the immune system thinks that it is a foreign cell. But it is not foreign. It is our own cell.
Who teaches it? Sertoli teaches it. The second thing is that Sertoli is born when the boy is not even born. Imagine that all the boys in this class have not been born.
Now they are sitting in their mother's womb. When reproductive system is formed, it is formed by two ducts. One duct is called Mullerian.
There is Wolfian, which looks like a boy. Look at the name, Wolf, Wolf is a little mannish type, it is a boy. Mullerian is like a female. So when reproductive systems are being made, both ducts try to make it. Wolfian says I will make the male part, Mullerian says I will make the female part.
But who controls this? XX or XY. If the combination is XY, then what will become? Male.
So as soon as XY comes, then Wolfian says I will make a male, Mullerian you move back, they will not let you make fallopian tubes, they will not let you make uterus, so who will push Mullerian and make him move back, that Mullerian you will not grow, Wolfian will move ahead, son that is no one else, Sertoli is there, Sertoli releases AMF, AMF Anti Mullerian Factor, Anti Mullerian When? When you were not even born. In embryonic age.
And this AMF will suppress Mullerian. Will not let it grow. Female ducts will not be formed and male ducts will be formed. Male ducts will be formed.
Remember? Remember? Because the name of the wolf is a little mannish type. It is of macho type. And poor Mullerian is sober.
silent like girls so Mullerian is suppressed and Wolfian gets a chance to grow further ok yes yes son so you are seeing that we are writing in English but our class is going on in English Hindi English mix so if you are a Hindi medium kid you can learn completely from my class just open Hindi NCERT in front of you ok just open Hindi NCERT in front of you You will understand my class I guarantee you Okay I guarantee you Okay If you come Tell me the pathway of sperm Tell me the pathway of sperm How will you tell the pathway? First of all, who had sperm? With me, with Semini Ferris Stibule Where will sperm come after Semini Ferris Stibule? Because sperm will be formed inside it It will be formed inside it After that, where did it come? In the tubular erectile Then where did it come?
In this network That is retic testis Then where did it go? In Vasaifrentia After Vasaifrentia, they will go out of testis After testes, this is coil duct where sperm temporarily store. This is the coil duct lined by pseudo stratified epithelium.
This coil duct is called as epididymis. After this epididymis, where will sperm go? In vas deferens. Now I am going to make the front view of the whole male reproductive system.
So, my son, freshen up your pencils. Because we are going to form the front view of male reproductive system. Okay, ready?
Male reproductive system test is done Primary sex organ is done Primary sex organ is actually done Ok so we are drawing male reproductive system First of all this is urinary bladder From urinary bladder duct is formed We call this urethra Ok urethra Then covering is done on urethra Covering is done on urethra And discovering forms the male external genitalia. Okay? Yes.
Discovering forms the male external genitalia. Okay? So make it with me.
Son, this chapter, how much you can sit in the corner and laugh, laugh, look at each other like this, put your hand in your mouth, put your hand on your mouth and then keep laughing. Son, if you will not talk about this, you will never learn about it. this being a biology educator it is my responsibility to make you aware about the body parts which are present in your body.
It is present in your body. So if you are being future doctors about it. By the way, you are very proud to put a doctor in front of your name. You put a future doctor too. But until you openly talk about it with an open mind.
Son, 2023 is coming. Don't behave like you were in 1990s In our class, I am telling you, I won't take the name of any teacher But they used to cover up all these chapters They didn't teach But you should be aware about the body parts in your body Otherwise you will take the information If I cover it up like this then someone else will tell you and it may be that the information is not correct it may be that there are some wrong things told in it so it is very important for you to get correct information from the correct source and behave a little mature about it you are going to be 20 years old, you are going to be 18 years old okay, so you act a little like this that yes I am a matured kid I don't study in 8th class, I don't study in 7th class and take correct information if needed, you can also explain to your juniors, your brothers and sisters If you don't have information then will you teach someone and will you take informed decision in future So be aware and be very mature about this Next I said that testis is outside the body Outside the body it is in a pouch This is your pouch We gave name of pouch as scrotum See we gave name of pouch as scrotum Inside this scrotum there is testis Now I have told you what is inside this testis, it is testicular lobule, I am not telling you again otherwise the page will get dirty There are testicular lobule, seminiferous tubule, tubular erectile, rete testis, vasa efferentia After vasa efferentia comes the coiled duct, this is the coiled duct, epidermis, it is stuck on the testis, it is completely stuck on the epidermis Your vas deferens is due to epidermis, this is vas deferens Are you seeing, this is vas deferens This comes in a loop from above After the loop comes, a bulbous structure is formed here This bulb type structure is called ampulla So what I have made is Epididymis, Coiled duct where sperm are temporarily stored What I have made is Vast Deference After Vast Deference, Ampulla is made Ampulla has the first accessory gland What comes? The first accessory gland comes which I am making like this Can you see it like a tree? Yes This gland is called as seminal vesicle There are two, I am making one side What is its name? Seminal vesicle How many are there?
There are two, left and right both sides, I am making one After joining with seminal vesicle, the name of ampulla changes Pay attention, till now this was coming as vast difference But as soon as it gets the secretion of seminal vesicle Its name will change and now it will be Now it will become an ejaculatory duct Yes, this question has come in NEET 2022 NEET 2020, this is called as ejaculatory duct When the duct is removed from the seminal vesicle When the duct is given a vast difference What is the name of that duct? Ejaculatory duct The name of duct is changing Then on the way it got the next gland Yes Then on the way it got a single gland This This gland is called prostate gland What is it called? Prostate This is a single gland It has no companion Prostate gland Okay How many are there? Only one Then at a distance, he got a paired gland of the size of a peas What did he get? Paired gland So make a paired gland One is this And one you have this Yes, this and this.
Okay, this paired gland, this is called as Cowper's gland. What is its name, son? Cowper's gland. Or you can call it Bulbo-Urethral gland.
Bulbo-Urethral gland. Okay, son? Yes, is it clear?
That means sperm is coming from here. From where? From the epidermis.
After vas deferens, they came to ejaculatory duct Before ejaculatory duct, they got the secretion of seminal vesicle Then they got the secretion of prostate gland Then they got the secretion of cowper's gland And ultimately sperm has come here It is flowing inside this Now in this duct, earlier urine used to flow Because this duct comes out of the urinary bladder What is this? Urinary bladder, understand this This is part of excretory system In the ducts that come out of the urinary bladder, urine used to flow first but now in this duct, sperm and its secretions i.e. semen will flow So what is this duct called? Urino genital duct Can you say? Now this duct is called as urino genital duct Urino genital duct Now this is the covering of urino genital duct It is covered by external genitalia which we can also call as copulatory organ because it helps in insemination this external genitalia is called as penis yes this external genitalia this is called as penis ok now the skin of the tip of the penis is very sensitive and that is covered by a retractable fold of skin this terminal portion is called as glance penis Yes, which is retractable, which is highly sensitive.
This is called as glans penis. Okay, yes, it is clear. So, we have made a front view of the male reproductive system.
Now, this is all urethra. Do you understand? This is all urethra.
Urethra is from urinary bladder. Now, I am dividing this urethra into three parts. In three parts. Pay attention.
First urethra is that where prostate gland is. That means, this much portion of the urethra. This is called as prostatic urethra. Prostate gland is coming out.
prostate gland is coming out here this small urethra is called membranous urethra and the covering of penis around urethra is called penile urethra urethra has three parts how many? three parts this is small part I am labeling it with this color this part is prostatic urethra then this part is membranous urethra and this part is penile urethra Just check and tell me which part is the biggest. Which part is the biggest? Yes. Which part is the biggest?
Prostatic urethra is the biggest? Membranous urethra is the biggest? Or penile urethra is the biggest? Because the most urethra is near penis That means penile urethra is the longest part And which one is small? Membranous urethra is the smallest part Yes membranous urethra is the smallest part Okay?
Yes More details will come in next slide about penis Now here I have told you there are 3 accessory glands Which are there? There are 3 accessory glands Which are there? Seminal vesicle Prostate gland And cowper's gland and Bulbo urethral gland I am writing here only First gland is seminal vesicle How many are there?
2 seminal vesicle Maximum contribution to the semen Is done by seminal vesicle So first thing is maximum contribution 60-70% of the semen Is contributed by seminal vesicle And from here sugars come Which nourish sperm This is the source of fructose Sugars like fructose lactose, inositol which will nourish the sperm. From here, a clotting agent will come out whose name is fibrinogen. Clear about the seminal vesicle?
The box of seminal vesicle is clear. Who contributes the most to semen? Seminal vesicle. Then comes the next gland whose name is prostate gland. Prostate gland.
How many were told? One. One prostate gland is there.
Prostate gland will contribute 20-30% And the secretion of prostate gland will be alkaline secretion Do you know why this is done? This is done because when urine comes in urethra, urine is acidic And if sperm comes, then acid will kill them If sperm dies, then it will have to be neutralized So the base should come from somewhere Base comes from two glands, one comes from prostate and one from the upper Basic secretion is released It is alkaline, along with it calcium ion will come fibrinolysin will come to break the clot fibrinolysin will come ok so this is your talk of prostate gland prostate gland ok next last is cowper's gland yes cowper's gland it is also called as bulbo urethral's gland how many are there two are there how is its secretion it is alkaline and its major work is lubrication in which lubrication helps lubrication is done by keeping that area wet and not let it become dry yes this is the function of cowper's gland 3 glands are done how many are there total 1,2,3,4,5 glands are done in one way 3 types 2 seminal vesicles, 1 prostate and 2 cowper's gland done male reproductive system is done after this comes copulatory organ yes the last part is copulatory organ yes last part is copulatory organ Yes, the trait will come from the prostate gland Many children are asking what is this special class? This is our special class The class is not over yet, I am just telling you This is a free test I will take the test of whatever I will do I will take the test in the evening at 5 pm In a free class where there are poll based questions I have pinned the link of the class in the chat box So join this free class What time will it be? 5 pm. Just click on it and enroll.
It is free class. You will be on Unacademy app. You have kept so many useless apps.
So keep an app for work also. Is it not kids? Will you keep an app for work also?
Yes kids? Come on. Next part comes. The last part that is the penis.
If you see the structure of the penis, see the transfer section of the penis. So in the transfer section, it has 3 tissues. Yes, let me draw the section.
Yes, so the first part is this. See these are spongy tissues present near the penis. If we see near the penis on the dorsal side and on the ventral side.
If you see on the dorsal side, then there are two tissues present above which are called corpus cavernosa. And if you see on the ventral side, then there is a tissue called corpus spongiosum. What comes out of the middle of the corpus spongiosum?
Urethra. So you are understanding. Ventral side.
Ventral is the front side. Dorsal is the back side. On the ventral side, there is a tissue inside the penis, spongiosum.
What is coming out of the middle of it? This urethra is coming out. Okay. So what is present near the spongiosum? Urethral opening.
This is the urethral opening. What else can we call urethral opening? Urino genital metus Urino genital metus Ok Urino genital metus Ok Yes dear, it is clear now dear, the tip of the penis I told you, talking about the tip of the penis, the tip is called as glance penis, glance penis, there is a retractable fold of skin on the glance penis, that means there is a fold of skin on the tip that is retractable, which can move back and forth, so it has got a retractable fold of skin and that dear, retractable fold of skin, is called as foreskin this is called as foreskin this is also called as prepuce remember this name also called as prepuce now on the inside side of the skin on the inside side of this skin there is a gland present on the inside side yes there is a gland which is present and that gland is called as prepucial gland simple it is the gland inside the prepuce or it is called as tyson's gland gland of tyson From here a special type of secretion will come out If there is a gland then something will come out The name of that secretion is smegma What is smegma? Smegma has a very characteristic odor It has a smell, it has a special type of smell Sometimes in some cases there is a removal of this Poreskin, the foreskin is removed surgically That procedure is called as circumcision Surgical removal of prepuce is called as circumcision And many a times there is surgical removal of testis This is done in case of cowherd boys Cowherd boys are those who sing in Christmas Now their voice has to be low pitched Like girls have to do So one way of it is that testosterone should not come in it So cut the source of testosterone So what is the source? Testis Remove the testis So neither will they get testosterone nor will their voice be as heavy as boys And their voice will be thin so that they can become good singers So that surgical removal of testis is called as castration Castration So I told you two words I told you two words, one is circumcision What is circumcision?
Surgical removal of prepuce Removing the skin above What is castration? Surgical removal of testis And this is done in the case of coir boys Okay Is it clear about the penis? Yes, everyone done?
Yes, son, is it done or not? Yes, tell me quickly Son, the boards can definitely follow this Absolutely can follow See who? See Priyanka, who is Priyanka? I don't know what they are doing What they are doing What they are doing What are you talking about? What are you talking about?
So male reproductive system is done See it with NCRT So we have made the front view This is your side view We talked about the scrotum We talked about the temperature required We talked about the Facts about the testes, we talked about testicular lobules, there are 2050 lobules. Then we talked about, I made this diagram half, it will be half same. Then we talked about the seminiferous tubule, okay.
It will have a germ cell, Sertoli cell, apart from Sertoli, there will be interstitial cells, which we called lytic cell. Then we talked about accessory ducts, which are extra ducts, reti testis, vasifrensia, epidermis and vas deferens. Son, there is a question in itself, that male. sex accessory ducts are so you will say reticulitis, vasiferenes whatever extra duct you are seeing all of them are vas deferens accessory ducts then we also talked about we also talked about that epidermis leads to vas deferens which comes from above and loops on urinary bladder and the opening of the lower meters we named it urethral meters this is the diagram of seminiferous tubule whose diagram is this?
it is the diagram of seminiferous tubule Then we talked about the external genitalia This is over, its charge is over We talked about external genitalia foreskin, seminal vesicle, prostate, bulbo-erythral gland Is it clear till here or not? Male reproductive system is done Yes, it is done, tell me quickly Check with NGRT, class is not over yet, I will do a little female Here we go, it's on the side. Now I will make a claim here The class is not over yet, female students are also doing it But now you have to study this portion from NCERT You have learned 99% of this chapter here I know that you have learned this much portion here in the class You may not know But I know you have learnt this chapter What will you have to do after one class?
You will have to study from NCERT You will have to see each and every line again I am not doing it here knowingly Because if you do it yourself, you will get more confidence You will have to see each and every line After seeing that, you will have to come to the class at 5 pm All these sessions All these sessions you will get on my linktree Where will you get? You will get it on linktree The easiest way to find linktree You have to go to google and type seepauja link The first link that will come is to open this You will get all these things This crash course is going live You will get the link of the session on the live one And also the PDF of it I will give you the PDF on telegram, it is easier for you Okay? Yes, okay?
Are you ready for the female reproductive system? Are you ready or not? Yes, study from zero with me.
You didn't know anything, come to this session, attend here. You can become a hero from zero. This is a zero to hero series for you. Zero to hero series. Start the female reproductive system.
It is more than sufficient for the boards. I am doing a little extra from NCRT here so that your understanding remains. Don't be dumb.
When you are competing with someone else, my kids shouldn't look like those who are just playing with NCERT. No, you have to know the base of NCERT and compete with every child. Whatever I am doing, even if it is going out, it is necessary for you. Okay? So, we should be proud.
You will get the best content here. It will be oriented to the MCRT but everything required you will get I got a message from a student who is in AIMS Patna He called me one day and he was studying anatomy and physiology In the first year topics are there in anatomy and physiology He called me and said that the human physio that you had taught And that human physio in which reproduction is also done in a way He has helped them so much in their first year They feel that they have learnt the basics in a very appropriate way So this is what we are doing to make sure And don't worry, your syllabus will be timely Don't worry, syllabus will be done timely So I am competing with everyone So my children will not be less, absolutely not less Come on, female reproductive system Yes son Like we did in males, it also has primary sex organ and secondary sex organ Will you tell me which will be the primary sex organ in female? Yes, which will be the primary sex organ? Primary sex organ again, it is going to be a paired organ And that paired structure is a pair of ovaries Pair of ovaries, how many are there?
Two ovaries In secondary sex organ, whatever extra things are there Apart from ovaries, that will be part of secondary sex organ In which your duct system will come, it has OV duct The second name of Oviduct is Fallopian tube After Fallopian tube, inverted pier shaped structure is there Whose name is uterus Uterus will open into the next part which is called as cervix And after cervix comes vulva Vulva is a female external genitalia And there are some accessory organs also Accessory glands are there like mammary glands What will be the work of ovary? The work of ovary will be to release ova, gametogenesis So its work is to make gametes in the female And the process of making gametes is called oogenesis Oh, the song is not going on And to release hormones Hormones are estrogen and main progesterone Okay, oogenesis Yes, son Yes, absolutely right Dr. Amit is very much in the process of going ahead Son, why do you want your name to come in such a big class? And when you hear your name from here, don't say any good words.
Listen to your name like this. What is this? What should be the name? Bad name only. Son, don't have such an attitude.
Do something good. They are entering follicular atresia. Now they don't know follicle.
If I ask them about the difference between secondary and tertiary follicle, they will not be able to tell But they want to know atresia Don't be like that Once in class, I had a friend My classmate told me about that friend Yes, tell about that friend Tell about that friend The one who just needed attention in class There was a child, it was about my college He needed attention in that class He needed attention, so he went to ask such questions to his teacher And they used to look behind and ask like we used to be the backbenchers They used to look behind and ask like this Sir, sir, what is this DNA doing? Sir, sir So don't be like this Work on the real thing If you become fake then that's the thing I just want likes on Instagram I want likes on Facebook What will you do with likes? Tell me, these are fake likes They are your fake friends It's a virtual world Live in reality Follicle has not been introduced in reality yet But they need follicles Yes, the kids remember it Not Instagram likes, go to real likes Go to the likes where the parents of the patient are saying to you Thank you so much for saving the life of my son, my daughter Thank you for saving the life of my father This is called real recognition Facebook likes, Instagram likes, watches, views, subscribers These are not real recognitions Recognition is that you got blessings from your heart Recognition is that if today after 10 years, 20 years my children remember me and say that Seep ma'am taught us these things, then there can't be a bigger recognition for me.
When I get old, you remember me that there used to be a teacher in our NEET coaching who taught us free of cost, with selfless passion. That is my real gift. Real gift is not my salary, real gift is not views. If from your class, even one good doctor leaves, Even one good doctor who works for humanity, who works to cure someone, whose intentions are pure, that is my real success. My success is not my salary, my success is not the number of views, my success is not this.
My success is the real thing. So you also run after real appreciation. Real appreciation. Don't run after fake.
Yes, so if we see the structure of the female reproductive system, Draw the structure Yes We will make one side I have become a little fat but it's okay Yes, the other side will also be like this But I am not drawing it completely Okay, you understand You understand, okay Some kids are saying, ma'am you taught like this last year So, you are still here from last year If you teach like this Will the subject change if you drop it No, it's not like that You talk like a child, sometimes I laugh at you You are a child First of all, let's talk about the primary sex organ Primary sex organ is the organ which is hanging in the abdominal This is called as ovary There is a pair of ovary One ovary is here and the other is here Then comes all your secondary sex organs First of all, let's talk about The duct is called as OV duct. This is your OV duct. OV duct is called as OV duct because it is carrying OVA. This is fallopian tube. You are also laughing after listening to this.
Ma'am this is same as last year. This was also the same NCRT last year. Last year there were only kids and women. Maybe you also got into it.
No problem. You will have to study again. Right?
You will have to study again. Okay. So this is OV duct.
What is this? This is fallopian tube. Fallopian tube is the actual site of fertilization What happens in fallopian tube?
Fertilization happens Now there are 3 parts of fallopian tube So I am going to write part number 1, 2, 3 This is the first small part Then this turn comes in the life of sperm This turn came and after turn a thin lane will come 3 lanes will come choti sigali? Chike number one. This number one is called as infandibulam. Yes, the number one part is called as infandibulam.
In fundibulum Then a big part will come Whose name is ampulla What is the name of ampulla Anywhere ampulla comes Means a big part is called Then comes the third portion The third portion is a thin street Whose name is Isthamas What is the name Isthamas So he made an oval To hold the oval See To hold the oval There is a finger type structure This finger type structure is called Hemfimbriae What do you call Fimbriae Fimbriae are like this This is like this You will see the section of this This is like this And there is a hole inside it Yes Ova comes out of this hole This hole is called ostium What is this hole called? It is called ostium So ova came out Ova My Punjabi is not good Ova was caught by these Fimbriae This ova entered through ostium To whom? It will go to these Pandipulam then it will go to ampulla and then to isthmus while being in isthmus it will go to inverted pier shaped structure and this inverted pier shaped structure is called as uterus what is its name guys? its name is uterus now there are three parts of uterus, let me make it smaller yes, one minute wait Yes, one second, let's move the osteo up here We have three parts of the uterus, how many? Three The number one part is this one, this number one part is called as fundus This upper part is called fundus The second part of the fundus is called the body or the corpus It is the body, the body is also called corpus And the third, the small narrow part of the uterus is called cervix What is the name of this?
Cervix Now uterus is an inverted pier shaped structure It is also called womb And what is called? Hystera is also called So these three are the words of uterus Uterus, womb and hystera These three words are same thing Okay Three parts of uterus Fundus, body and cervix After cervix this is the outside opening External genitalia And the external opening in external genitalia We call it vagina This is called as vagina. So this is the part of your female reproductive system.
The primary sex organ, the ovary. After the ovary, the fimbrio is to be picked. Then this whole path of ova will remain.
Now if he got sperm, then it is different. If he did not get sperm, then his life will end in this way. Ova will come, will stay for 3 days. If he did not get sperm, then from here with periods, with blood and mucus, out of the body. His death will happen.
Now, from the cervix and vagina, the baby is born. The gestation period of the baby is in the body of the uterus. That's why it is called womb because the fetus is formed here. But the birth of the baby is from both these, cervical canals and vaginal canals. So, the baby is born from the cervix and vagina, that's why it is called birth canal.
What do you say, children? Birth canal. Okay, what will you say?
Birth canal. Do you remember? Yes. Yes, absolutely. Now, in Oviduct, a child has asked a little more deeply.
No problem. As we were going to write later. Out of these three, one, two, three, which one is the site of fertilization? So, it is actually number two.
Ampilla is the site of fertilization. In old books, it is ampillary isthmic junction. But it has been updated.
If someone asks you... that site of fertilization which part is of oviructa so you will say that bend where there is a bend I left the pot there so don't leave the pot there you have to do fertilization after fertilization the site of implantation where does it stick where is the implant in your hysteria so what is hysteria it is a site of implantation site of implantation remember site of fertilization site of implantation everything is here site of fertilization is ampulla part of the OB duct and site of implantation is going to be the hysteria or the uterus part ok now let's go now what to do to this ovary take this ovary section cut it like this and see what is inside this ovary you will see multiple follicles are inside this ovary inside follicles your ova mature So this consists of multiple follicles. So let us start with the structure of ovary. Section of ovary.
Shall we do it? Yes, son, are you tired? Yes, they are having a lot of problems.
Son, tech power, ovary is the name of an organ, ova cell. They are asking what is the difference between ova and ovary. Son, ovary is an organ.
Primary sex organ is the ovary. Ova is formed inside this. Ova is formed inside this.
So let's cut the section of ovary and see what I saw. I cut the section of ovary and I got this structure. Okay? Yes, I cut the section like this. Yes, everyone has made this much?
Are you tired? Yes, good. Even if you are tired, I am not going to stop. You get tired. You know your studies, I am not going to stop This is a section of ovary All the malmasala in the ovary All these malmasala are called stroma All the area in the ovary, matrix, medium, this is called as stroma Look at the outside side, your follicles are formed And on the inside side, your connective tissue, blood vessels, ligaments are present So do you understand?
All these parts will be called stroma What did you call it? stroma So I will label it What is this? stroma And there are two things in stroma One is the peripheral region The corner region This peripheral region is called cortex What is called? Cortex What will you get in the peripheral region?
You will get follicles And a inner region, this is cortex, see this much I will do that also, see this This is cortex, peripheral region And the inner part of this is called as medulla Cortex and medulla, this name is not new In medulla you get connective tissue, blood vessel, ligaments Okay, yes, is it clear? So, outer cortex and inner medulla Now, I said that cortex will make follicles So, the first follicle we have We call it primary follicle I will do folliculogenesis separately Don't worry about it, just write it now This is primary follicle What secondary follicle makes after primary follicle is enlarged? What will be made after primary? Secondary follicle, 2 degree secondary follicle After secondary follicle You can see a cavity inside See this is getting bigger in size too And inside you can see a separate cavity See this This follicle is now called as tertiary follicle What is the name of this? Tertiary follicle Tertiary follicle is getting matured It is getting ready to ovulate This is maturing even more See this It has matured a lot The cavity has grown The antrum has also grown The ova is ready Secondary oocyte is ready to be delivered This is now called as mature graphian follicle Mature graphian Graph was the name of a person It was the name of a scientist That's why it was named mature graphian follicle Mature graphian follicle itself If it is a 28 day cycle It breaks a little before the 14th day And the secondary oocyte comes out from it Here in menstruation, secondary oocyte comes out from this stage That is, ovulation happens at this place Ovulation is the release of secondary oocyte from the follicle There is oocyte inside the follicle Remember there is a cell inside the follicle There are nutritive cells around the cell So it becomes a total follicle There is ova inside the follicle So there is ova inside this This is also there This is also there Now this is secondary oocyte We are calling this ova Secondary oocyte will come out We will call this process ovulation When it is removed, a yellowish mass will be formed at the back A yellowish structure will be formed People will call it corpus luteum Lutea word is used for yellow Corpus luteum After corpus luteum, a white body will be formed Which is called corpus albicans Yes, corpus albicans Okay, children, is it clear?
Is it clear? This is the section of ovary Section of ovary, ovary is a solid structure Badami ovary is our almond shaped structure Isn't it? Like there is no song Badami rang te utto dash dash dash I don't know But I know so much that badami rang is a song So this is solid and almond shaped structure Badam, you should eat badam everyday Isn't it? You should eat badam everyday I will show you badam This is the almond.
Can you see? This is the almond structure. See, this is how the almond is. How do I show you?
See, it is like an almond. This almond cannot be zoomed. But you understand that there is a nook on one side of the almond.
See, there is a nook like this. There are many ligaments here. Okay?
Our almond is happening. You are not able to relate with that song Badami Rang You are remembering raw almonds Okay, do that If someone puts a raw almond reel You say that it is not raw almonds It is a ripe ovary Don't talk like that Okay, so this is ovary We will do folliculogenesis with gametogenesis In tomorrow's class Today we will do the next portion So ovary is clear Ova is getting ready inside the ovary inside the follicle Now, Ostia has caught it with the help of its finger like fimbria After catching it, in which entry would it have entered? In which entry would it have entered? Your inside the fallopian tube who got the entry inside?
fallopian tube I have told you in the fallopian tube, the first part is in the infundibula the broad part is the ampulla and after that is the isthmus fallopian tube is called OV duct site of fertilization we have written that is ampulla I am not telling anything else in this then son, I wanted to tell you one thing when ova will move from here is it the parent of ova? ova has cilia, ova has flagella how will ova move from here to here? Who will take it?
There should be some structure Because ova is not motile Egg is not motile There should be something to take egg from here to here This ovary wall is lined by ciliated epithelium This wall is lined by ciliated epithelium I am showing you by zooming This epithelium has cilia This side also has cilia And this side is also cilia, this cilia will push ova and take it Ova doesn't have its own legs, sperm had its own legs Sperm has a flagella, it will go with the help of it But it doesn't have its own legs So it means the fallopian tube is lined by, I can write here It is lined by ciliated epithelium Right kids, ciliated epithelium All the notes you will get on my telegram, it is in my name only, Sip Pahooja, next biology, there are more than 1 lakh children in it, go to the correct one, okay, and ciliated epithelium, so ovary, oh, the question has come, I don't want to tell the question now, next we come to the part of its uterus, fallopian duct has been done, then coming to the uterus, if we talk about the uterus, then the uterus has 3 layers, okay, the uterus has 3 layers, so this is your uterus, This is outer layer. Then you have your present in the middle like this. See, there are three layers.
The outer one is blue. I have made a thick layer of green in the middle. Okay, and then I will draw another layer like this.
Son, promise me that you will apply these classes daily. Otherwise, this will not be as good as Surat. They just have to shine, to shine they have to be shining, to shine they have to shine, to shine they have to shine, to shine they have to shine, Should I show you how to do inverted pier?
Should I show you? Okay, wait. Inverted pier. Yes.
Yes. Let me just show you. Are you watching?
This is inverted pier. Yes, inverted pier. Ulta Nashpati.
It's a structure like Ulta Nashpati. Can you see? This is the shape. You can see the shape.
It's a big shape. It's a fundus. Right?
The body is big. The cervix is getting thinner. Okay? The cervix is getting thinner.
So eat Nashpati. That's Ulta Nashpati. Inverted pear shaped structure, wide fundus and thin cervix So in this shape, female uterus is present See this is real Nashti Everyone has to reverse Nashti Right? Very good Come on So inside this pear, this is the whole wall What is this? This is the whole wall If we see its wall properly, then there are 3 layers in front of it.
What are they? 3 layers are present in the wall. The outer most layer which I have made in blue color. This outer most layer is called as perimetrium. What name have I given it?
Perimetrium. Okay. This is outer thin fold of peritoneum. Then inside there are special type of muscles.
The muscles which are not in your control. These are smooth muscles. When the baby is born, contract is done and push the baby on the lower side, on the vagina side So these are the muscular layer And the term used for muscle is called as myo So what is this metrium? It is myometrium Now can you contract this muscle as you wish?
Is it a dolly-sholly? That you feel like doing this and that? No Involuntary signals are generated to contract these muscles Many hormones control it So these are involuntary muscles Which will be involuntary muscles?
It is smooth muscle Now tell me Tell me, will it be like this that Part of this muscle will contract separately Will contract separately Will contract separately No right? All muscles of left side and right side will contract together And when contraction happens together What is that type of smooth muscle? Tell me When contraction happens together They all contract as a single unit What do we call that muscle?
Single unit smooth muscle It won't be different That the left side one is saying that I will do it The right side one is saying that I don't want to do it, I am sleeping No, all the muscles will contract together on the left and right side And will push the child down Or their contraction during menstrual cycle also so what we call that contraction that type of muscle single unit smooth muscle so 2 is done then comes this thick layer this is highly thick this is glandular this internal layer which is the site of implantation this is called as endometrium this is called as endometrium what name you will give to this it is thick in endometrium It is fat because it has many glands and blood vessels And it is temporary It is not always fat It will break and then it will be It will break and then it will be So this is what happens in the menstrual cycle This is what happens When you feel like getting fat When they feel that implantation can be done now Then when their heart breaks That implantation is not done, sperm is not there Then it will break Then there is a hope that it will be done That maybe implantation will be done Maybe sperm will be there But if sperm doesn't come then it will become thin Means it is temporary It has temporary thickness There is a layer but it has temporary thickness It will remain thick in pregnancy because it has to support the baby But if there is no pregnancy and sperm doesn't come then it will break It is highly glandular layer It is glandular and very vascular also It is very thick It is vascular layer and very thick its outer most layer stratum functionalis is temporary the base of the outer layer is permanent but the upper layer is highly temporary when implantation is done and it is waiting for it then it is made it stays for some time and waits when it is done and it is not coming then it is done so with this we are done with this one next let's go to the last structure of female reproductive system is cervix and vagina. What is cervix and vagina? How many children are here who have come just for PDF?
Yes, the time of class will not change. There is a hole in the oestrum. This is the fallopian tube, this is the fimbria, there is a hole here, this is the oestrum. This hole goes to the ova, the secondary oocyte basically.
Cervix and vagina. Come on, what is cervix? It is a narrow part of uterus. This is one of the narrow part of uterus.
Narrow part. of his Terra or the uterus. Okay? Vagina is the opening of the outer part.
Vagina is lined by stratified. Because it is open to the outside, so we will keep it stratified, multilayered. Non-keratinized squamous epithelium.
Non-keratinized because it is wet. Squamous epithelium. Through the vagina itself, your penis is inserted inside releases its semen insemination is done in vaginal canal only insemination, you understood insemination transfer of male gamete into the female part that is done by the copulatory structure and that copulatory structure which was it? we have written it as copulatory structure this is the copulatory structure copulatory organ copulation means again mating, the transfer of male gamete into the female body This is done by penis and where does penis do this work?
In vagina, they release them. So vagina forms a canal which is called as vaginal canal. This vaginal canal is called copulatory canal. Because it is called copulatory canal. Because in this only, penis will be inserted and it will release its semen inside.
Okay. And I told you from where it is born, from both cervix and vagina, both are called together, birth canal. Now one thing is written very well by NCIT that vagina is lined by a perforated membrane.
There is a perforated membrane on it. Vagina is lined by a perforated membrane. Perforated means the one which has a hole, porous membrane. And that porous membrane is called as hymen. What is it called?
Hymen. Okay. Now, in the olden days, what can I say in the olden days?
There are still a lot of people who think that the hymen breaks when the female copulates for the first time or when the female has sexual intercourse for the first time. A lot of people have this belief. Listen to this carefully. A lot of people have this belief that hymen breaks only when the female copulates for the first time. tab hota hai jab first sexual intercourse hota hai.
So many people think that absence, presence of hymen is the indicator of virginity. Ki female ek virgin hai agar uske paas hymen hai. Jab ki hai dharna bilkul bilkul galat hai.
Hymen beta sexual intercourse se pehle aur uske baad bhi toot sakta hai. Yani ki presence or absence of hymen is not the indicator of virginity. Hymen can break anytime when there is a shock Sometimes female horse is riding She is doing very extensive exercise Sometimes there is a shock Or she is doing swimming She is doing cycling Insertion of tampons Hymen can break from all these So sexual intercourse is not necessary In fact, it happens many times Even after having sexual intercourse The hymen stays Okay, hymen stays So it is not necessary that it will break only on sexual intercourse It can break during any activity First, it can break on sexual intercourse but it can break on more things like horse riding, it can break during sudden jolt, jolt means there will be a shock, it can break during the insertion of the tampons, insertion of menstrual cup, tampons or the menstrual cup.
Menstrual cup beta, these are alternatives of sanitary napkins. It can break during cycling So can we say that if someone has hymen then only he is female virgin? No So presence or absence of hymen This is a very important line written by NCERT It is not a reliable Indicator of virginity It is not a reliable indicator of virginity No will come in it What will come in it?
No will come Clear? Everything is clear to everyone? So with this we are done with the whole female reproductive system Now let's come to external genitalia Next comes the vulva You will get all these notes on my telegram Don't worry if it gets a little loose You can write it together, but if you do it together, then nothing will be clear. It can't be done. You should get used to learning in class by sitting in my class.
Understanding and learning in class. After class, you have to read NCERT. I am getting you to do it by knowing it. So that your focus increases.
And then at 5 pm, there is a practice class. It is pinned. I hope you have enrolled.
Have you done it? I have done it. Jolt means a shock. High, I don't know which shock was hit by high. Yes, it was hit.
Bulba or external genitalia. Now understand this. External genitalia means what is seen from outside in the female reproductive system.
See, as much as we have read this thing, this is inside. This is inside the body. What is outside? What do you see outside?
Like in male external genitalia is a penis, you can see that outside But here what you can see outside, we are going to read that And female external genitalia is called vulva This is the second name of this Vulva is the other name of female external genitalia So when we saw from outside Externally, oh the pencil is over It takes 1 minute to charge Drink water We will drink water till the time the pencil answers They are not liking the session. They are asking how to enroll. Special class is a practice class on which you have to enroll by clicking. This is the practice class.
The pencil is getting charged, we have to make it now. This is the practice class, I have pinned it. You will see the class like this.
You will click on it, you can see human reproduction practice Starts on December 19th, starts at 5 What time? 5 o'clock You will get the enrol option there, click on it It is a free class It is a free class It is today's special class It will be everyday, it will be class at 5 Everyday we will practice questions here and I will improve your speed and accuracy I will improve your speed and accuracy Okay You haven't eaten anything yet? I am asking you, you haven't eaten anything yet?
What were you doing? What if you haven't eaten? Have you kept a fast?
You have to focus on eating and drinking Take a balanced diet Like I have had a heavy breakfast You also have a heavy breakfast I am not hungry yet, I am standing here and talking I am writing also, you are just listening You are also writing But you should eat and drink Have breakfast and then we will have lunch Okay? If we talk about external genitalia and vulva then let's draw it quickly First of all we have a fatty tissue which we call as Mons pubis Yes, it is a fatty tissue which is lined by pubic hair Which hair is this? pubic hair Mons pubis, it is a cushion of fatty tissue Then below this structure comes Lip like folds are there There is a bigger lip like fold and a smaller So let me draw the lip like folds So these are the bigger lip like fold.
This bigger lip like fold is called as labia majora. This big lip like fold is called labia majora. Labia means lip like. Inside this is smaller lip like fold.
See this. This is called labia minora. I will make it like this.
I have made it a little shaded This is labia minora Labia again became a little like a lip, minora means small See, whatever space is there inside this See, whatever space is there inside this, this space is called as vestibule What do we call this space? Vestibule So we will make it a little Highlight it All this which I am highlighting with pink color What do we call this space? Vestibule Okay This is called as vestibule.
Okay. Go inside the vestibule. Go inside.
You will see some openings. Some will be seen on the front side and some on the back side. Here you will see two openings.
The opening on the front side. Yes, kids. The opening on the front side is this.
This is the opening of the excretory system. We call this urethral opening. Yes. This is called as... Should I push it here a little?
This is called as urethral opening on the front side Now the opening on the back side is the opening of reproductive system This is called as vagina This is called as vagina That means the place is the vestibule In the vestibule on the front side is the urethral opening and on the back side is the vagina Now after this whole structure, a gap comes here. The gap is called as perineum. And after this gap comes the opening of your digestive system. Which we call as anus.
And an empty space is your perineum. So means in the female body, there are 3 openings total. 3 openings, opening to the outside. First opening is of excretory system from where urine will be released Where will urine be released from? From urethral opening Then if you go back you will see vaginal opening Copulation will be done from vagina and child will be born from vagina if delivery is normal So it is a birth canal as well as it is a copulation canal that is vagina Then comes anus Anus is the opening of digestive system So the undigested food or unabsorbed food is from here It will come out in the form of feces.
So, there are 3 openings in the entire body of a female. Then, where the labia minora is found, where both the labia minora are found, this, can you see? See this.
This structure is very sensitive. It is made up of spongy erectile tissue. That means, the tissue in the embryo which makes the penis, the glans penis, the spongy part, erectile part, this structure is made up of that tissue. structure is formed.
It is very sensitive in the whole structure of the female. This is called as clitoris. The upper end of the labia minora forms clitoris.
It is homologous to penis. So what is this? This is also a spongy tissue and erectile like a penis. It is erectile like a penis.
It does not help in copulation. It is homologous. Its origin is same.
Its function is different. Homology is same origin same and function is different The tissue from which penis is made in male From that tissue clitoris will be made in female But function is different Clitoris is not copulation But penis is copulation Function is different origin is same So homology is ok This is homologous to I am writing here Homologous to penis Can you write Yes it is clear Yes now around this vagina Pay attention There is a gland located on both sides of the vagina which is responsible for lubrication. Who was there for lubrication? Cowpers.
There is a gland here also which is responsible for lubrication. This is called as Bartholin's gland. It is also called as greater vestibular gland.
And the function of this gland is lubrication. What is the function? Lubrication. Okay.
See this. Bartholin gland. On both sides of vaginal opening. Bartholin's gland. So don't get confused.
Children get confused between bulbar erythral and bartholin. Bulbar erythral is in male. Bartholin is in female. Bartholin is in female.
Okay. So external genitalia is done. Now one gland is left to be made.
That is called as a mammary gland. Okay. that is called as mammary gland ready to draw mammary gland kids?
tell me quickly, will we make this today? yes, make it so mammary gland is an accessory gland present in female body Males also have mammary glands but they are non-functional They have vestigial glands, they are useless But in females, they have a very big role The first and most important role is where milk is made and the feeding and nursing of the child is done after the birth of the child So they have a very big role in lactation The mammary gland in females is present in the upper chest region In human females, not in all Females are present in the upper chest region in human females It is called thoracic region Prominence As a prominent structure But if you look at cow buffalo Cow and buffalo are present in abdominal region In humans they are in thoracic region But in cow and buffalo they are present in abdominal region They are modified sweat gland Modified sweat glands Should we draw? Should we draw?
Draw and come back If you tell me extra then it's a problem If you don't tell me then it's a problem Yes So inside the mammary gland there are present present are there many mammary lobes In one gland there are 15 to 20 lobes I will make two here What I made is mammary lobes inside the mammary gland How many I told you There are total 15 to 20, it is very important to remember this number Seminiferous tubules were 1 to 3 Intesticular lobules which were 250 These 15 to 20 will be mammary lobes in one mammary gland Okay, mammary lobes You will see this structure inside the mammary lobe Okay, you are seeing this is a balloon-like structure We call it alveoli What do we call it? Alveolus We will call one as alveolus Alveolus, from this small ducts will come out Mamary tubules, are you seeing? Yes, these mamary tubules are joining further This is joining and going, alveolus And then mamary tubule It also made an ampulla type structure here And ultimately made a lactiferous duct outside So, from alveolus, let me make it here too Come on, let's make it ok made a thick structure and made a lactiferous duct so this is alveolus from alveolus came mammary duct mammary tubule we will make mammary duct together mammary duct will make thick structure which is called ampulla ok from ampulla will come lactiferous duct ok lactiferous is related to milk and ultimately lactiferous duct will come out it will you know release the milk out and the opening is called as the opening is called as beta g nipples okay this opening ko kya bolengi hum log nipple nipple is lined by it is lined by um very dark colored skin this dark colored skin beta is called as areola kya naam denge beta ji isko areola theek hai ji ap jo size of mammary gland wo depend karat hai beta uske andar kitne Memory doesn't depend on lobe, it will be 15-20 How much fatty tissue is there? So here all this is fat This is all the fatty tissue This is all the fat The more fat there is, the more size there will be Next, let's depend on the special muscle behind the mammary gland And that muscle is called as pectoralis major I am making it here What muscle is pectoralis major?
pectoralis major ok kids yes ok so where will milk be made where will milk be made here it will be made in the alveolus in the alveolus will come from the mammary tubule from the tubule it will come in the duct from the duct it will go to the ampulla from the ampulla it will go to the lactiferous duct and from the lactiferous duct out if someone asks you per mammary lobe how many lactiferous ducts are there tell me per mammary lobe how many lactiferous ducts are there just tell me Per memory lobe, how many lactiferous ducts are there? Per memory lobe, how many lactiferous ducts are there? Yes.
Answer in the chat box. Per memory lobe, how many lactiferous ducts are there? Son, it is not enrolling on the pinned link.
It cannot be like this. Son, the whole world is enrolling from here. You click carefully. You should have an academy app. Download the learning app So per memory lobe there is only one lactiferous duct This yellow one is the whole memory lobe One of the yellow lobe is coming In the question past you have also come to the flow of milk Where will the milk go from the alveolus to the memory tubule From the tubule it will go to the duct and then to the ampulla This ampulla, pay attention This is the lactiferous duct and from the lactiferous duct the nipple Nipple is also called teat and from here it is out now the formation of milk what is the formation of milk tell me quickly formation of milk takes place with the help of with the help of prolactin prolactin makes milk who will eject milk who will eject milk ejection of milk is under oxytocin ejection of milk is under the effect of oxytocin Okay?
Let's go So with this With this we are done with the mammary gland and the whole female reproductive system Okay? We have done all the structure We have done the structure of male and female Now in the next class, what we are going to do is We will do the gametogenesis of both Out of which there are a lot of questions And we will do We will do Come on, some questions Yes, come on Do questions based on what we have done. I had said that I will solve the latest PYAQ here.
We will do the remaining questions in the special class. And DPP, you will get all these things on my link tree and on my telegram. Keep both things joined.
Tell me quickly whether you understood or not. Tell me by liking the session. Yes, tell me by liking the session whether you understood or not.
Today I have not kept the speed high because today was your first class. If I had kept more today, you would have said that you are tired Yes, I have not kept more speed today Tomorrow we will do it slowly Now it is 100 days, syllabus is completed easily in 100 days Yes kids Yes, there is a question from 2019 There is a question from 2019 From whom the question has come? From whom has it come?
From structure of male reproductive system From where has it come? From the structure of the male reproductive system Correct pathway of the transfer of sperm Correct pathway, I will move away Yes, tell me Answer on the basis of what we have done My name is Sip Pahooja You can see below You will find me in the Academy app Rest all social media, telegram, instagram I will meet you everywhere with my name My name is very unique, it is beneficial Okay Yes Select the correct sequence of transport of sperms Tell me children, what will be the answer Where did the sperm form? In the seminiferous tubule Then in the testis Seminiferous tubule Yes, what answer did you give? Absolutely correct It formed in the seminiferous tubule After the tubule, tubular erectile Then reticulitis After reticulitis, vasifrensia After vasifrensia, it came out Epidermis Vas deferens Then it is ejaculated from the ampulla Then urethra and urethral metas Urinogenital metas or urethral metas Absolutely the correct answer would be option number B Okay Will you do this type of question?
On the basis of today's paper I have given you this type of You get such type of questions Today I have done on that basis Let's see next I have to do the capacitation now Yes, 2014 question NCRT page number 43 is given Page number 43 I have mentioned NCRT on which page So you can go and see it easily Yes, the shared terminal duct of the reproductive and the urinary system in the human male is The shared terminal duct of the reproductive system and the urinary system is What is coming from the urinary system? Urethra is coming What is coming from here? The vas deferens is coming from here When the secretion of the seminal vesicle comes with it, then the name of that vas deferens changes And what is that name?
Yes, they didn't ask that name but it's okay What is it made of? Yes, urethra is made of This is the shared duct Do you know what is a ureter? This is a urinary bladder and this is a ureter These are ureters that open in the bladder This is urethra beyond the bladder This is the same urethra that was attached to the vas deferens from the seminiferous tubules Where is it? Is the excretory system running at zero?
Is it running at zero? Ureter opens in the bladder What goes out of the bladder? Eurythra goes. Next, let's go.
Yes, next. It was mentioned in page 43 of 2011. Check the page number. I am going according to your NCRT page number.
If for some reason, wassai, frenzya and the human system is blocked, the gametes will not be transported from where to where the gametes will not go. Yes, where to where they will not go. Read it. Gamete will not get transported from 2011 Means, the question has come on the system. The question has come on the system, so from where will the gametes not go?
Won't vasodilatants go from the epidermis? What difference does it make to them? Ovary to uterus, nothing is going there.
Vagina to uterus, this can never be the answer. They are saying, vasa efferentia is blocked. So, we will block it and show you.
What is the matter? Vasa efferentia blocked this. This is blocked. Son, from vasa efferentia only sperm goes out of the testes.
So this is all about testis This is an external matter So sperm will not go from testis To epidermis Testis to epidermis Will not go Correct answer would be option number A A is correct answer A is correct answer Ok I am seeing which one is left Yes, simple question, it came in 2019, you can see this from the reproduction and organism side also Yes, the correct sequence of events is given on page 47 It is easy, it is a little pregnancy related but you can give the answer You can give this answer, 19th, correct sequence Yes dear, a little pregnancy related but you can appear, you can give answer Yes, think about it. Gamete is formed. After the gamete is formed, it is transferred.
We know that insemination is done till here. Then fertilization is done inside. Syngamy is done.
Then zygote is formed inside. Okay? After zygote, it will divide.
It will differentiate first. Stupid kids. Those who are going with A, it is okay till here.
You will do differentiation first, then division. What are you studying? First you will divide.
You will cleave. Then it will differentiate. And then it will become an organ.
How? How did you do the blender? So the correct answer is B not A Correct answer is B not A How will A be? You are doing differentiation first and then division How stupid is this?
First we will divide And then we will differentiate the cells Okay? So B will be the answer B will be the answer Okay? So with this we are done Now we will meet at 5 in the special class Today we will discuss about all the things we have done today We will do questions and if you have any doubts You can bring them there How did you like the session? Please write me in the comments Comments matter a lot And remember one thing If the enthusiasm is not there till the last day Then there will be no neat crack So the fire in your belly The fire in your stomach It should keep on going Tomorrow we will try to complete this chapter It is a big chapter and a very good chapter So let's get started All students should come in the 30th class This is a free class on Unacademy app Just you have to enroll It will look like this When you open it, it will appear like this Just enroll Press the enroll button Okay Those who don't have an app, download the app Okay There is a big offer going on It is till 22nd December If you take a subscription of 4 months Then you get a subscription of 1 month free of cost What code to apply?
Apply CEPLIFE code I will also have mentorship with me Plus and iconic are running around 25% and 30% off And my new batch is also coming on 22nd December We have just launched the YouTube batch But the batch on plus in which you will get guidance, DPP, classes, practice paper, doubt solving, mock test You have to join Plex plus for all this And what you will apply for code is Cply You are getting a very amazing team there too You are watching my photo I would like to support you no matter where you study, in plus, somewhere else, from YouTube. My only wish is that I can take an average child close to a topper from above average. I don't say that I will take you to Ames in 4 months.
It will be very difficult for me. It is not possible if you are starting to study now. But I am telling you, if you are starting to study now, you will stay with me. Your selection will definitely happen.
I can get my selection done, I can take a rank above 620, Rank is luck, rank is the result of your old deeds, If you have done good deeds in the last 1.5 years of studies, then the rank will be good, If you have not done good deeds, then this is going to be the class for you for selection, The rest is the offline center of Anacademy, you can join there too, I will see you today at 5 pm, make sure that you enroll, And do leave a comment below and like the session, give pure love, You are joining me, I will do my best to get your marks. to the point and the homework note the homework till 5pm you have to read the NCRT before 5pm you have to read the NCRT you have to read You have to make sure that you will read NCERT and do this at 5 pm And you will tell me how easy and simple NCERT is Ok children, see you at 5 pm Thank you so much guys, take care