Balance and Equilibrium Flashcards
0
Q
What structures are responsible for balance?
A
Semicircular Canals-Dynamic Equilibrium
Utricle and Saccule-Static
1
Q
What are the two types of equilibrium?
A
Static and Dynamic
2
Q
How is static equilibrium maintained by the Saccule and Utricule?
A
These fluid filled sacs have hair cells covered in otoliths. As these shift & move, the hairs bend and send signal to cerebellum
3
Q
How is dynamic equilibrium maintained?
A
By 3 semicircular canals. When the head moves side to side or back and forth, fluid moves to give info about DE
4
Q
What is an Ampulla and it’s function?
A
A pocket in a semicircular canal that holds a cupula. Cilia attached to hair cells in the cupulas bend as fluid moves, initiating an action potential
