Lecture 3. The Vestibular System Structure, Function and Dysfunction
ฝัง
- เผยแพร่เมื่อ 11 ก.ค. 2024
- Objectives
To gain an understanding of:
• The role of the vestibular system in maintaining the stability of the visual world, the spatial orientation of the body, and its modulation of the autonomic nervous system
• With what and how does it do it
• How to interpret the indicators of dysfunction caused by peripheral or central lesions
Let's buy this great man a new mouse, he deserves at least that.
One of the best lectures!Thank you!
What a fantastic explanation. I have been struggling to understand the vestibular system specially the VOR and this has been explained so well thank you Professor.
I am recovering from (probably) neuropathia vestibularis, and this helped me to understand what is going on. Very well made video!
This is a Great Video! Clears up a lot of things. I had a good laugh when your visuals screwed up so don't worry about it. Thank you!
a very good lecture
Sir very nice lectures on CNS to clear all doubts in these difficult ares of nervous system.Hats off to you. Sir do not get discouraged by comments by some idiots and continue to post more videos on nervous system
Very clear explanation, thanks
excellent sir
amazing !
Very helpful. Thank you.
so nice i understood
it was amazing lecture ❤
This lecture is gold
beneficial.
thank yousomuch sir really helpful.
old man.... i love you
wow! at least i understood
Chevere!!!!!!!
Tanks. Rest in peace!!
Thank you. Very educational video. However it appears the right and left sides are counterposed at 8:37 when explaining the orientation of the semicircular canals. Apologies in advance if I have misunderstood.
Mohomed Choksi Right
I hope by now he knows to use the left/right arrows instead of the mouse :-)
Internal capsule
33:29 is it contradicting it's self? because left image cold pulls from cupula. Right image warm pulls from cupula. Hmmm...
the orientation of the canals change and thus the orientation of the cupula changes too. so when the warm water is applied and it makes the endolymph lighter- the endolymph rises and moves away from the cupula - i.e. it ''pulls'' from the cupula thus causing inhibition of the right canal. Hope that helps!
Yup..for me too.. couldn't understand that concept though...
@@divanshi4894 but when SCC was on horizontal line,je said that when applied with warm water,endolymph become lighter and it moves and pushes the cochlea.but when we are in prone position,he said that when applied with warm water,it moves away from cupula..?how's that?🤔🤔
@@bellwellteamz3986 Heyy! So, the point is that when the patient goes prone, the entire canal flips over, (which means the ampulla flips over too) so the orientation of the hair cells also changes -> the orientation of the kinocilium with respect to the stereocilia changes. So when you apply warm water and the endolymph rises, the convection currents move the stereocilia away from the kinocilium (which is equivalent to inhibition of that canal). The lighter the endolymph, the more it will move upwards; so in prone position (face down), the canals themselves move. Thus, ''upwards'' for the endolymph changes in accordance! at 32:48 he wiggles his fingers to symbolise the ampula (which is now down) so if the endolymph were to ''rise'' from where his fingers are and move upwards, it would have to pull the stereocilia and thus inhibit the right canal. Does that make sense or have I made it worse lol
@@divanshi4894 hihi...yup got it...but can u pls explain the same on the first scenario which he explained..(before the prone position)
Cenarizine's role in vestubular compensation - th-cam.com/video/xBbJISLdx9Q/w-d-xo.html
RIP.
awesome lecture, but i think you should have cut it into a number smaller sections to attract more views, 1 hr in one go is intimidating for most people
They can watch it at 1.5 speed, gets a little shorter that way.