5:36 - Probably before the hair tufts sweep to the right or left when head turns, they must first go briefly to the opposite direction which is perceived as such, right?
Thank you very much for this! So the vestibula and ampulla works together right? For example when the head is tilted forward like in nodding yes, then both crista and vestibula work together for the balance in that head position?
To my understanding, the utricle (horizontal) and saccule (vertical) detect linear acceleration/deceleration whereas anterior semicircular canal detects rotation in the sagittal plane. Obviously there's some overlap
Regarding de movement of the endolymph in the CSC, whether is excitation or inhibition it is important to know of which ear we are talking about. Great lecture!
Question, as our head moves the liquid in the vestibular system flows causing haircells to bend in ampulla and Maculae , and nerve impulses are sent to the brain. But the fluid is not in sync with the labyrinth because of inertia. So i am wondering if there's a latency of this type of signal transmission? How does our brain compensate this delay?
is it not like, the horizontal responds to motion in the vertical axis ? that is the canal in right angle to the axis of motion is stimulated more? my book says so and im confused now...
Your diagrams and explanations were excellent with one glaring exception. I’m not a doctor, but I think you will acknowledge that when the head turns, the fluid DOES NOT turn due to inertia. The canals turn and it’s the RELATIVE motion between the turning canals and the stationary fluid that is sensed by the body. I watched your video, and many others on the inner ear, trying to get the answer to another question that you may be able to answer. I notice that the three semicircular canals are not exactly mutually perpendicular. The anterior canal leans in about 10 degrees, or at about 80 degrees relative to the other canals. This would cause crosstalk and confusion in the information from the canals. Is there a valid reason for this arrangement? Did nature screw up? Thanks, Steve Hines
Amazing and very helpful videos!!! You may have misspoken about superior and posterior semisircular canals detection of movements... it`s should be the other way about, isn't it?
Utricle and saccule detect linear acceleration _Static balance But the 3 semicircular canals detect rotation around 3 axis so detect Angular acceleration _Kinetic balance
![Anatomy | Physiology of the Utricle & Saccule [Otolithic Organs]](http://i.ytimg.com/vi/5iZAnn5HlVw/mqdefault.jpg)
That intro was threatening. Very nice
You let audience learn a lot with small number of slides. This is an indicator of good teaching skill.
That is the complete opposite of what my teacher does...
these videos regarding the vestibular apparatus were super helpful
Excellent Teaching. Congratulations. Keep the good service.❤
5:36 - Probably before the hair tufts sweep to the right or left when head turns, they must first go briefly to the opposite direction which is perceived as such, right?
you made it so easy to understand. Thank You so much.
amazing job so clearly explained thank youuu
thanks for this! great explanation!
Excellent presentation.
Thank you very much for this! So the vestibula and ampulla works together right? For example when the head is tilted forward like in nodding yes, then both crista and vestibula work together for the balance in that head position?
Thanks so much for this info! I'm currently dealing with vertigo and this helped me understand what's going on ❤️
Best video ever.... Wow. Thank you sir.
very clear explanation! Thank you so much💗
Does the anterior semicircular canal, utricle and saccule detect the same thing when it comes to head flexion and extension? I'm confused.
To my understanding, the utricle (horizontal) and saccule (vertical) detect linear acceleration/deceleration whereas anterior semicircular canal detects rotation in the sagittal plane. Obviously there's some overlap
Thanks , that's really helped a lot
Very well explained.
Amazing videos!!! Very helpful, thanks!!!,
Thank you for the kind words.
Regarding de movement of the endolymph in the CSC, whether is excitation or inhibition it is important to know of which ear we are talking about. Great lecture!
Thanks for great effort... For u shared a large knowledge
Question, as our head moves the liquid in the vestibular system flows causing haircells to bend in ampulla and Maculae , and nerve impulses are sent to the brain. But the fluid is not in sync with the labyrinth because of inertia. So i am wondering if there's a latency of this type of signal transmission? How does our brain compensate this delay?
Thank you so much for this video! Very put together :)
Thank you and no problem!
Very helpful , thank you
Great way to learn. Great.
is it not like, the horizontal responds to motion in the vertical axis ? that is the canal in right angle to the axis of motion is stimulated more? my book says so and im confused now...
Thanks for teaching
thank you
Great video!!
Thank you for the video it helped me A lot
Finally a good explanation
If I may ask, are the vestibules at the anatomical coronal plane?
Very helpful for clear concept ,,,,,,,thank you so much
No problem!
Terrific content. Keep it up
awesome pictures and video! thank you so much!
Can u pls tell me The answer of The below Mentioned Question ?
why Patient with acute unilateral Vestibular Lesion Experience Spontaneous Nystagmus?
tomorrow is my exam lmao
yeah it was great to recap
Thanks🙏
Your diagrams and explanations were excellent with one glaring exception. I’m not a doctor, but I think you will acknowledge that when the head turns, the fluid DOES NOT turn due to inertia. The canals turn and it’s the RELATIVE motion between the turning canals and the stationary fluid that is sensed by the body.
I watched your video, and many others on the inner ear, trying to get the answer to another question that you may be able to answer. I notice that the three semicircular canals are not exactly mutually perpendicular. The anterior canal leans in about 10 degrees, or at about 80 degrees relative to the other canals. This would cause crosstalk and confusion in the information from the canals. Is there a valid reason for this arrangement? Did nature screw up?
Thanks,
Steve Hines
wait so the baseline firing rate for the hair cells are high then right?
Hello. Good day. I do not understand what you mean by acceleration to the left. Does left mean to the left hand side ???
Anterior and posterior semicircular canals of opposite sides work in unison. It detects motion neither in true frontal or true coronal planes
Thank you so much!
By this video I understand alot thanks alot
You're welcome!
Why is the direction of head movement and endolymph opposite? Isn't it the same due to inertia??
yes
hats off.
What is ampullary crest ?could you tell .
Great 😇
If anyones wondering why fluid moves opposite to direction of rotation. Simple physics Every action has an equal and opposite reaction
every action FORCE has an equal and opposite reaction FORCE. at least state the theorem in full 🙄
Also... it's just inertia, not Newton 3 :p
Those who disliked did it cuz they finally got it
Amazing and very helpful videos!!! You may have misspoken about superior and posterior semisircular canals detection of movements... it`s should be the other way about, isn't it?
Nah!He was right
The anatomical structure of the cupula is not presented properly
ua-cam.com/video/bl7xIDrDtPU/v-deo.html
BPPV
Does the anterior semicircular canal, utricle and saccule detect the same thing when it comes to head flexion and extension? I'm confused.
Same doubt
Utricle and saccule detect linear acceleration _Static balance
But the 3 semicircular canals detect rotation around 3 axis so detect Angular acceleration _Kinetic balance
Thank you so much!