[Music] reproductive embryology female development the normally growing malarian duct grows and forms the fallopian tube uterus cervix and upper 2/3 of vagina the normally regressing wolfian duct regresses remnant is par offerin epin and Gartner's duct the normally developing external genitalia develop and form labia majora labia minora and clitoris detailed development of the female genital tract we shall discuss this under the following points development of ovary development of uterus and Fallopian tubes development of vagina development of external genitalia or vulva development of ovary the ovary is developed from the genital Ridge the cranial end of the genital Ridge becomes the infundibulopelvic ligament the ovary develops from the middle part of the genital Ridge the cortex and the covering epithelium are developed from the camic epithelium and the medulla from the messen Kim The Germ cells are endodermal in origin and migrate from the yolk saac to the genital Ridge the number of agonia reaches its maximum at 20th week the ovaries descend during 7th to 9th months and at Birth they are situated at the pelvic brim the bip potential gonad develops into an ovary about 2 weeks later than the testicular development Descent of ovary similar to the test the ovary also descends down from the lumbar region into the pelvis gubernaculum is formed from the ovary to the labia majora but this gubernaculum attaches Midway to the junction cornua between the developing uterus and tubes the part between the ovary and cornua becomes the ovarian ligament the part between the coroa and labia majora becomes the round ligament development of internal genitalia the internal genitalia that is the uterus and the tubes are developed from the malyan duct the malyan ducts form both the tubes the whole uterus and cervix and the upper 2/3 of the vagina there are three basic steps required here formation of two malyan ducks Fusion of both the Ducks C cranially dissolution of intervening septum formation of two malaran ducts in the fifth to sixth week of intrauterine life of the embryo malyan Ducks develop as an imagination of intermediate cell Mass two malyan ducks develop one on either side and grow codly they approach each other in the mid line after crossing the wolfian duct anduse Fusion of both the ducts CTO cranially it begins by 7 to 8 weeks and is completed by 12 Weeks dissolution of intervening septum initially when the two malan ducts fuse an interbeing septum is present but later by the fifth month of intrauterine life it also disappears development of vagina vagina develops from two sources mainly from the malaria IND duct forms upper 2/3 part partly from the urogenital sinus forms lower 1/3 part these together form a solid vaginal plate canalization of the solid vaginal plate occurs at 20 weeks if this canalization fails to occur it leads to transverse vaginal septum the mucus membrane of the vagina is derived from the iderm of urogenital the muscles of the vagina are derived from the mesoderm of malarian duct development of vulva the external genital organs start developing almost simultaneously with the development of the internal genital organs the side of origin is from the urogenital sinus clitterus is developed from the genital tual labia minora are developed from the genital folds labia majora are developed from the genital swellings the Hyman is developed from the junction of the malyan tubercle m exodermal and the urogenital sinus endodermal the Bellin glands are developed as outgrowths from the cal part of the urogenital sinus and correspond to the bulbo urethal glands of male the fate of the wolfian duct malyan duct is also called paramin duct the wolfian duct is also called mesine duct remnant of the cranial end of wolfian body is eperon or organ of Rosen Mueller located near ovarian hus remnant of the coddle end of wolfian body is pararon the remnant of wolfian duct is Gartner's duct Gartner cyst it is a cyst in the remnant of the wolfian duct it is seen mainly in the anterolateral aspects of the vagina mainly confused with cyal identification rugus sites of vaginal mucosa lost vaginal mucosa tense and shiny margins well defined non-reducible no visible or palpable expansile cough impulse genital asymmetry genital asymmetry strongly suggests mix gonal dis Genesis mix gonal dis Genesis occurs due to Y chromosome mosaicism most commonly at 45x 46xy carot type typically with the ascended partially dis genetic test on one side usually the the right A Street goad with retain malyan remnants on the other side and atypical genital appearance often with asymmetry the general examination an individual with 45x or 46xy mosaicism reveals clitorois is much longer than a typical clitoris but short for a penis scrotal hypospadius with a single lated orifice for their urethra and vagina and urogenital sinus due to incomplete Fusion of the genital plate and lack of separation of the urethra from the vagina partially fused labial scrotal folds with minimum ration wrinkling or pigmentation goad in the labial scrotal fold on the right but not on the left to summarize indifferent Ridge refers to the undifferentiated structure in females ovary and in males test primordial germ cells develop into OVA and females and into spermatozoa and males sex cords consists of granulosis cells and females and semi nefarious tubules with CI cells and males mesonic tubules from eperon and Par Aeron in females and contribute to the development of eant ductules and Paramus in males mphc Ducks form the Gartner ducks in females and contribute to the development of the epidemis ductus deferens and ejaculatory duct in males the goer gubernaculum is associated with the uteroovarian and round ligaments in females while in males it's linked to the gubernaculum tesus param mphc Ducks give rise to the uterus Fallopian tubes and upper vaginal and females while in males they contribute to the prostatic utricle and the appendix of the tesus the urogenital sinus develops into various structures in both sexes including the bladder urethra vagina par urethal Balin glands and lesser vestibular glands in females and the bladder urethra prostatic utricle prostate gland and bulbo urethal glands and males the genital tubercle forms a clitoris in females and the gland's penis in males urogenital folds differentiate into the labia manura in females and contribute to the formation of the floor of the penol urethra in males labial scrotal swellings develop into the labia majora in females and the scrotum in males that's all for the video we'll see you next time