Brain Anatomy Review and Quiz

this is for students that have already  begun to learn the anatomy of the brain   to give them an opportunity to see  do you know what you think you know   because a lot of the times what i am seeing  is students are using quizlets or flash cards   and they're always looking at the same pictures  so they think that they know the structure but   what's happening is they don't know what the  structure looks like they know what their flash   card looks like and their quizlet question looks  like so when you get to your test and it's not   your quizlet or your flash card you're lost so  this is an opportunity for you to look at things   differently to see do you know it in a context  other than your flash card or your quizlet or   whatever you've been doing so i'm gonna  say what's this what's this what's that   and give you an opportunity to fill  in the blank so this entire region   on the outside of your brain is what this  entire region what is this entire region here and this and this so the whole region on the outside  of your brain is the cerebrum is the "cerebrum" this point that i indicated here on the inside  of your brain the whole thing is the "diencephalon" this whole structure the "brain stem and this entire thing the  "cerebellum" cerebrum cerebellum cerebrum, cerebellum so this whole region is the "brain stem" but it has three regions in it - this this and this this is the midbrain, pons, and medulla oblongata all of the hills are called what all of  the ridges are called what? and all of the   valleys are called what? so all of the hills  are called "gyri" all of the valleys are called   "sulci". Singular would be "gyrus" and "sulcus" What is the name of this specific sulcus? What is the name of this specific gyrus? What is the name of this specific gyrus? so this is the "central sulcus"  in front of the central sulcus is the  "pre-central gyrus" behind it is the "post central gyrus" what is this what is this and then what is the strip of tissue here the longitudinal fissure separates  the halves of your cerebral hemispheres the transverse fissure separates your  cerebrum from your cerebellum and the   vermis is the strip of tissue that's  connecting your cerebellar hemispheres coming to the inside what is this, this, and this? this is the "corpus callosum", underneath the corpus callosum   is the "septum pellucidum", underneath  the septum pellucidum is the "fornix" the corpus callosum is a big tract  of white matter that's connecting   your cerebral hemispheres the septum pellucidum  is a wall that separates your lateral ventricles   think of the septum in your nose. The septum  in your nose is a wall between your nostrils   the septum pellucidum is a wall between your  ventricles and underneath the septum   pellucidum is the fornix which is a tract  of white matter within the limbic system in the beginning remember we said  this whole region was what? the diencephalon. The  diencephalon has three regions what is this region this region and this pink line region so this is the "hypothalamus". Hypo means below and  it's the hypothalamus because this is the "thalamus" and then above the thalamus this  pink line is the "epithalamus" so what is this white bump this brown dot this pink dot and these white bumps back there this is the "mammillary body". To me the diencephalon  plus the brain stem looks like a sea horse   the mammillary body would be  the double chin of the seahorse   because if you just think oh it's a white bump  there are lots of white bumps on the brain   it's specifically this white  double chin of the seahorse this brown dot is the "intermediate mass." The intermediate mass connects the two   halves of the thalamus. At the end of the  epithalamus that pink dot is the "pineal gland" and these two bumps which are on the back of  the midbrain are the "corpora quadrigemina"   so there's two on this half of the brain the other  two are on the other half of the brain so there   are four total what are they if we're just talking  about the 2 on the top or the 2 on the bottom just talking about the 2 on the  top would be the "superior colliculi" and the two on the bottom  are the "inferior colliculi" so what did we say this was  again? the "septum pellucidum" and remember that's the  wall between your ventricles now looking at the other half of the brain model what's this it's not the septum pellucidum because  it's not a wall the septum pellucidum is removed   on this side of the model the empty space you're  seeing behind it is the "lateral ventricle".  Remember, ventricles are those empty spaces in your  brain that contain your "cerebrospinal fluid" if we take this apart you can  see the lateral ventricle better   it's just the empty wishbone shape space  so the fluid from your lateral ventricle doesn't stay there it's  going to go through this hole what is this hole what is this empty space this  empty space and this empty space? This hole is   called the "interventricular foramen" because it's  connecting your "lateral ventricle" to this which is   the "third ventricle." The region is the diencephalon  but the empty space within the diencephalon is   the third ventricle coming into here this is the  "cerebral aqueduct" and this is the "fourth ventricle" so what did we say this region was again? the pons and we haven't mentioned this thick band of tissue or this thick band of tissue this is the cerebral peduncle  it is a tract of white matter   that's connecting the pons and the  cerebrum so this is the cerebral peduncle this thick tract of tissue is  the middle cerebellar peduncle   because it's connecting the pons to the cerebellum   there are more cerebellar peduncles but  we can only see this one on this model so the chest of the seahorse was the  pons, what is the tail of the seahorse? the medulla oblongata and what is this thick lump on the  front of the medulla oblongata and what is this pink dot here this lump is the "pyramid" and the pink  dot is the "olive". So, when we popped off   the top the empty space was the lateral  ventricle but there's other stuff in there what is this this and what's that? so up at the top is the "caudate nucleus" on the bottom is the "hippocampus" i don't know if i pointed to this but what is that   that is the fornix remember you see the  fornix on the outside well some of it's   coming to wrap around to the inside because  it's a white matter tract in the limbic system and this is the  internal capsule Alright, so keep  in mind I did not mention every single thing on  this brain there are other models to look at there  are other angles if you really struggled with this   and could not answer anything that should tell  you that you need to change up your studying also   remember watching my video over and over again to  the point where you can recite it is just as bad   as looking at the same flashcards all the time  because then you're not learning it you're just   learning my video which won't help you on  your test so um find different pictures   ideally find a study partner a lot of people are still learning  virtually but if you and a study partner   have your own pictures and quiz each other  that will help a lot it helps you to quiz   somebody because you have to think about it and  it helps you to be quizzed um because it's kind of   keeping you on your toes so i hope you all have a  great day and really feel free to reach out to me   if you are just having a hard time figuring  out why your studying isn't going so well

Channel: Anatomy Hero

Views: 113,918

Keywords: brain anatomy quiz, brain regions quiz, cerebral hemispheres, brain quiz, diencephalon, cerebrum vs cerebellum

Id: yfZQxZhp1zc

Length: 14min 30sec (870 seconds)

Published: Wed Nov 25 2020