all right guys in this video we're going to take a look at the ventricles so all the fluid filled cavities within the brain so imagine we take all of these fluid filed cavities out of the brain this is kind of what it's going to look like right here so if we look right here we have two lateral ventricles all of this is lateral ventricle all of this over here is also lateral ventricle if we were to kind of differentiate what part of it is this is kind the anterior Horn of the lateral ventricle this is the posterior horn of the lateral ventricle and this is the inferior Horn of the lateral ventricle and again all of this is containing cerebral spinal fluid all right now if you look we'll be able to see a specific structure that actually is what makes the cupos spinal fluid so this little pink gummy fluid all right guys so we flipped it upside down so that you guys would be able to see this pink gummy stuff right there and again what is that that's the choid plexus of the lateral ventricle that's what makes the cerebral spinal fluid and then you have these things called endal cells that helps to circulate it throughout these actual ventricles so again that's the Cory plexus of the lateral ventricle and you again you have one one over here too right because you have two lateral ventricles all right guys now connecting these two lateral ventricles together is this little tube right there so if you see a little tube right there number two that's what basically drains the left lateral ventricle and the right lateral ventricle into a structure called the third ventricle so again this little tube right there is called the interventricular forment another really important thing right here that I want to mention is imagine I take a thin piece of paper and I put it right in between the two lateral ventricles right there that is called the septum paldum it's a thin membrane that separates the two lateral ventricles from one another okay so again septum pum is a thin membrane but that little tube that's draining the two lateral ventricles is called the interventricular fan okay so if you guys look here we drained the lateral ventricles through the interventricular fan and we drain it into this ventricle right here this one right here is called the third ventricle and if you remember every ventricle has a COR plexus you see that pink gummy stuff again that pink gummy stuff is called the CH plexus of the third ventricle that's what makes the cerebros spinal fluid and again the epinal cells are part of the cor plexus so it circulates it so again if you see this guy right there draining the third ventricle right there right in the midbrain that's going to be called the cerebral Aqueduct so we got the cerebral Aqueduct right there which drains the third ventricle and that runs through the midbrain then after that it goes into this area back here which I'm going to turn so you guys can see this is called the fourth ventricle and the fourth ventricle again it actually has again what is this this little pink gummy stuff it's called the chid plexus and that's what makes the cerebral SP spal fluid now one more thing before we're done is the cerebros spinal fluid can go a couple different directions one is it could go down into What's called the central Canal of the spinal cord or it could go out through lateral aperture so if we imagine over here is a lateral aperture and over here is a lateral aperture we actually give it a specific name they actually call it the frame in lushka and then if you imagine that there's another aperture a median aperture one coming out in front of me like I'm coming out to the camera and another one behind it out here that's called the med apertures are the fan magent okay and basically what those do is they drain the fourth ventricle of the cerebral spinal fluid and puts it into the subarachnoid space all right guys so that pretty much gives us everything we need to know about the ventricular model