The saccule is the smaller sized vestibular sac (the utricle being the other larger size vestibular sac); it is globular in form, and lies in the recessus sphæricus near the opening of the scala vestibuli of the cochlea. Its anterior part exhibits an oval thickening, the macula of saccule (or saccular macula), to which are distributed the saccular filaments of the acoustic nerve. The vestibule is a region of the inner ear which contains the saccule and the utricle, each of which contain a macula to detect linear acceleration. Its function is to detect vertical linear acceleration. The macula of saccule lies in a nearly vertical position. It is a 2mm by 3mm patch of hair cells. Each hair cell of the macula contains 40 to 70 stereocilia and one true cilia, called a kinocilium. A gelatinous cover called the otolithic membrane envelops the tips of the stereocilia and kinocilium. The otolithic membrane is weighted with small densely packed protein-calcium carbonate granules called statoconica. The macula of the utricle is in a horizontal position and detects horizontal acceleration. The coordinated sensory perception of acceleration both vertically and horizontally along the vestibular nerve, allow for the perception of linear acceleration in any direction. In vertical linear acceleration, the weighted otolithic membrane lags behind the stereocilia and kinocilium. This bends the stereocilia, which is interpreted by the brain as vertical linear acceleration. (Wikipedia).
Introduction to the C programming language. Part of a larger series teaching programming. See http://codeschool.org
From playlist The C language
Introduction to the C programming language. Part of a larger series teaching programming. See http://codeschool.org
From playlist The C language
A review of the notes common to all formations of a G chord.
From playlist Music Lessons
How to Memorize Medical Terms - Memory Training
https://memorycourse.brainathlete.com/memorytips/?WickedSource=Youtube&WickedID=How-to-memorize-medical-terms Get memory training tips at link above now Are you stressed trying to memorize medical terms? Medical terminology can be one of the hardest things to memorize in medical school a
From playlist Memory Training // How to Memorize
Renin production in the kidneys | Renal system physiology | NCLEX-RN | Khan Academy
Learn the three major triggers for Renin production by the Juxtaglomerular cells. Rishi is a pediatric infectious disease physician and works at Khan Academy. Created by Rishi Desai. Watch the next lesson: https://www.khanacademy.org/test-prep/nclex-rn/rn-renal-system/rn-renal-regulation-
From playlist Advanced circulatory system physiology | Health & Medicine | Khan Academy
Cristina Alvira – Special Presentation: Stanford Childx Conference
Cristina Alvira discusses what she is doing at Stanford to find new ways to promote the development of the lung in premature babies and after injury at the inaugural Childx Conference, 2015. Childx is a dynamic, TED-style conference designed to inspire innovation that improves pediatric an
From playlist Stanford Childx Conference 2015: Special Presentations
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From playlist Biology
Not Everyone Can See Haidinger's Brush—Can You?
Checkout Mel Science boxes here! https://melscience.com/s1x/ Use code 'ACTIONLAB' for 50% off your first month I show you how some people can see the direction of polarized light and show you how to see it. My shorts channel: https://www.youtube.com/channel/UCA19mAJURyYHbJzhfpqhpCA Get
From playlist The Action Lab Does Quantum Mechanics
General overview of the RAAS system: Cells and hormones | NCLEX-RN | Khan Academy
Learn the important cells and hormones that are working together to control your blood pressure! Rishi is a pediatric infectious disease physician and works at Khan Academy. Created by Rishi Desai. Watch the next lesson: https://www.khanacademy.org/test-prep/nclex-rn/rn-renal-system/rn-re
From playlist Advanced circulatory system physiology | Health & Medicine | Khan Academy
All F chords are made from different permutations and combinations of the F,C and A notes
From playlist Music Lessons
The structure of the eye | Processing the Environment | MCAT | Khan Academy
In this video, I review the structure of the eye. By Ronald Sahyouni. Created by Ronald Sahyouni. Watch the next lesson: https://www.khanacademy.org/test-prep/mcat/processing-the-environment/sight/v/vision-summary?utm_source=YT&utm_medium=Desc&utm_campaign=mcat Missed the previous lesson
From playlist Processing the environment | MCAT | Khan Academy
The Science of Seeing | Sight: The Story Of Vision | Spark
Our ability to see determines our quality of life, yet many of us take our sight for granted. A great portion of the world’s population struggles to see, and none of us will be able to escape vision loss in our lifetime. Sight: The Story of Vision reveals the vision crisis that is taking
From playlist 4K Science Documentaries
Why Shouldn't You Look at the Sun?
You might have done it accidentally or intentionally but one thing is clear: Don't stare at the the sun! Hank Green explains why. Hosted by: Hank Green ---------- Dooblydoo thanks go to the following Patreon supporters -- we couldn't make SciShow without them! Shout out to Justin Ove, Da
From playlist SciShow Space
What Has New Horizons Taught Us About Pluto?
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate Pluto's not just cool… it's ICE COLD Tweet ⇒ http://bit.ly/OKTBSpluto Share on FB ⇒ http://bit.ly/OKTBSplutoFB ↓ More info and sources below ↓ Since New Horizons fle
From playlist Be Smart - LATEST EPISODES!