VESTIBULAR APPARATUS; the Anatomy & Physiology of Balance & Equilibrium by Professor Fink
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- čas přidán 28. 08. 2024
- In this Video Lecture, Professor Fink reviews the basic anatomy of the Vestibular Apparatus (including the Semicircular Canals and the Utricle & Saccule), and describes the physiology of Balance & Equilibrium, and its Neural Pathway. Reference is made to the hair cells, endolymph, angular (rotational) acceleration, tonically active, spinning, vertigo, cartwheel, somersault, otolith, gravity, linear acceleration & deacceleration, horizontal & vertical, Vestibulocochlear Nerve (Cranial Nerve VIII), Vestibular Reflex Center, Thalamus, and Primary Sensory Area.
Check-out professor fink's web-site for additional resources in Biology, Anatomy, Physiology & Pharmacology: www.professorfink.com
Down-loadable e-Books of the Lecture Outlines by Professor Fink can be purchased from the WLAC Bookstore at: wlac.redshelf....
“Hard Copy” Lecture Outlines can be purchased from the WLAC Bookstore at: onlinestore.wla...
![Anatomy | Physiology of the Utricle & Saccule [Otolithic Organs]](/img/n.gif)
the X-axis (horizontal axis) is also called the lateral semicircular duct and corresponds to saying "No".
Y-axis (vertical axis) : Anterior semicircular duct : saying "Yes"
Z- Axis : Posterior semicircular duct : tilting your head laterally
Your lectures helps alot. Thank-you Prof. Fink.
excellent suggestions regarding the semicircular canal (ducts)! Thank You!
professorfink My pleasure Prof. Fink
been in family medicine for 30 years - your lectures are wonderful - you are a very gifted teacher
i just paused the video to say YOU ARE GREAT !! I wish i had teachers like you in my school, i am here because i was trying to find something really useful that would actually make me understand what happens in the vestibular apparatus.. i was trying to learn from books but nothing s better than these kind of videos you make. Thank you very much !!!!
Thank you so much. I couldn't imagine trying to pass physiology without your lectures. You are a great professor!
You're amazing. I've never been this mentally stimulated in a lecture before. Thank you!
Thank you Professor Fink for the wonderful and FREE lectures which are so helpful and engaging. I was a teacher for many years and I am so glad we have resources like you online for aspiring health care professionals like myself. I'm currently taking Anatomy and Physiology online and feel with videos like these that I've made an excellent choice. I feel very spoiled to be able to study when I want, where I want and by whom (professors like you) to really make things clear, fun, interesting, engaging and easy to understand. Thank you so very much for your hard work and sharing it so freely.
Thank you, Thomas, for your kind words. My sincere Best Wishes for your Success!
I used these videos to make it through my A & P class, then I went back and used them again to get through my perception and sensation class in my junior year of college, then again in my anatomy of speech and hearing class...!!! thank you, 10 times over!!
everything is so crystal clear! why cant i have lecturers like youuuuuuuu!
Great!!! Please, try to continuous making these videos. I am from Ecuador and I can learn better than my professors explained in the medical school.
Lecture Outlines by Professor Fink can be purchased from the WLAC Bookstore on-line. The LINK is posted at the bottom of the Video DESCRIPTION above.
PROFESSOR I love your videos!! I wish you could teach my classes!! You make it easy to follow. Your humors examples help stick these concepts into long term memory.
This professor is awesome. So easy to listen and absorb what he's teaching.
Well said. I watch all of his video. He is one gifted teacher
I wish I had this guy as my prof - he is very clear & makes it quite easy to understand. Thank you!
My Anatomy professor followed your style of teaching. Thank you Sir :)
What have you become now 😢 ?
You are so funny !! - thank you soo much !! I’ve been looking for this info in those thick textbooks 😓 and none of them explained it better than you do !! - excellent video uncle ! 😁😁
Great Teacher!!!! I can understand and REMEMBER.... I am so thankful for these videos!!!
great as always....very clear and easy
Thank you the great teacher
A stereo effect as there are two separate complete sensors sending information simultaneously to command central. A gymnast can utilize the system to control muscles to adapt to required movements.
Combined with sight, sound, touch there are a lot of inputs for the processor to assimilate instantly to activate proper muscle skeletal systems.
Imagine the design development stage of this project.
this is fantastic!
wow. your class was not boring. I had a lot of fun. thanks for your time. excellent job sir
thanks too much professor,your explantation is amazing ,really thank you for your effort
favorite teacher!
that was good our 'old' friend the thalumas!
Regarding the Otolith... What about people getting caught in an avalanche? I recall that they are often not able to tell what is up and down?
Thank you Professor for your great lecture especially for me as a person with vertigo. Hoping by watching more videos learn more and learn more. We need petiole like .you.
Thanks a lot.
You are truly amazing!! Really helped me understand it! Wish I had a teacher like you! Great job :)
Thanks for this social service..
Muy buena la clase profesor, me fascino la forma como enseña....
WOWWWWW That is the best lecture Ive had :) thx so much!!!!!
Wow just amazing
Hey professor, I found a mistake in this lecture. Due to its' viscosity, the endolymph moves in a direction opposite that of the linear acceleration of the head (i.e a clockwise rotation of the head would result in the counterclockwise movement of the endolymph, leading to a deflection of the cupula in a direction opposite to that of the direction of head movement...at minute 7 you seem to posit the opposite)
Thank you, Professor Fink for the lecture, but I believe that there is a mistake in the movement of endolymph inside semicircular canals. The fluid will move opposite to the direction of the head rotate.
+Firehell Thank You for the technical correction; the fundamental understanding stands.
Also, in zero gravity of outer space, the stone in the Utricle Saccule would be thrust against the hairs along the walls whenever an astronaut’s head moved or turned suddenly in the opposite direction (like when accelerating, braking or turning in a car). Wouldn’t this give the astronaut a sense of gravity in that particular direction?
@Individual Perspective *IP* What do you mean? Use your schooling and try to be an example of intelligent discussion. Come strong, because I know my stuff!
Thanks a lot.
You are a great lecturer. 😃😃
thanks a lot prof easy way and simple in presentation
Great lesson! Thank you Pr.
Sir ...so the endolymph rotates in the opposite direction of motion ...so do hair cells
Thanks! Great upload Prof!
Professor fink where can i have those notes that you use during your classes on a pdf or a doc ?!
Im sorry to inform you professor but otolith membrane (utricle and saccule) is responsible for linear movement, meaning when you walking, your utricle hair cells are depolorizing when you are jumping your saccule hair cells are depolorizing. when you are rotating, your semisircular canals are depolorizing. Great work btw
Noice professor fink,
very noice
Amazing
Your students are so lucky
Yous Sir are amazing!
Very good lectute. But hair cells in the utricle and sacule located in special places, called macula (spot) of utricle and macula of saccule. They are approximatly 33000 and 18000 respectively. And nothing about hair cells of ampullae (crista ampullaris).
Hair cells in ampullae do exist and each of them contains appr. 50 - 150 stereocilia and 1 kinocilium.
Thank you so much !!!
thanks for the information professor, but I want to ask something, if our head is moving either upward backward or like saying no, or tilting our head, did both of the semisircular canal and utricle sacule work together or just one of them? sorry for my bad english, i hope you understand that. thank you sir
The semicircular canal AND the utricle & saccule are ALL continuously sending information to the Brain.
+professorfink so, if I make a conclusion, the semisircular canal is more work to give a brain a signal then give another signal to other organs like eye to make a nystagmus, or proprioreceptor like muscle to balance our movement, and the utricle and sacule is to tell our brain how is our position and our movement, is it correct prof? sorry if I make it a little bit confused.
Awesome!
thank you
professor about the otolith brake acceleration thing i though it was inertia or it is otoliths that cause inertia
thank you!
this is talent
technically, its' the hair cells in the crista ampullaris of the semicircular canals depolarizing, not the SCC itself because its not completely comprised of hair cells.
Amazing lecture, as always! Thanks a lot! @professorfink, how big are those structures in humans? (otoliths, vestibular apparatus, cochlea)
Each otolith averages about 10 um in diameter.
SEE: www.dizziness-and-balance.com/disorders/bppv/otoliths.html
@@professorfink Incredible! Thanks a lot!
sir i was trying to get your notes are your notes available with your remarks
and if yes please tell me which website should i go
dear dr a great lecture. from where can i get these diagrams. which book you are following/
All the Diagrams come from my Physiology Lecture Outline. It costs $20 and is a 100% down-loadable & printable PDF. You can purchase it at: wlac.redshelf.com/
@@professorfink does it cover all the physiology lectures. And are the diagrams downloadable?
@@devangeesoni4753 Hi Devangee! Yes! The Lecture Outline contains ALL the line drawings and they are all downloadable & printable.
Where can I access these diagrams. Which books are they taken from?
Nice teacher
thank u
The lesson is brillant and pf Fink is great, but in my opinion he made an error explaining the behavior of the otolith when a subject is moving down. Ototlith might go up, not down, because of the difference of density btw Caco3 and endolymph. But I agree, it is a detail...
If you are interested in Vestibular physiology, you have go to play this video
Exactly, The same thing is going on when we accelerate, the otolith goes forward, not backward, am I right?
which video?
plz sir we need your notes
damn feke!
Yous Good Prof!! Yous Good!
#BWA
‼️
hmm..looks like Steve Jobs
Lecture Outlines by Professor Fink can be purchased from the WLAC Bookstore on-line. The LINK is posted at the bottom of the Video DESCRIPTION above.