The Vestibular System Flashcards
What is the end organ of sensation for the vestibular system?
The end organ of sensation for the vestibular system is the cristae, located within the cupula.
How many semicircular canals are there?
There are three semicircular canals.
Which areas are able to determine linear motion? Angular motion?
Linear motion is determined by the otoconia. Angular motion is determined by the three semi-circular canals.
What is the typical spontaneous rate of vestibular hair cells?
~90 spikes/second
What is the cupula? What does it do?
The cupula is a gelatinous membrane that creates the partition of the membranous labyrinth.
If a head rotates and accelerates to the left, how do the left and right vestibular afferent fibers respond?
The left ear is being excited while the right ear is being inhibited.
