Vestibular

Question 0

Role of saccule

Answer 0

Vertical linear acceleration

Question 1

What detects linear acceleration?

Answer 1

Saccule and utricle

Question 2

Role of utricle

Answer 2

Horizontal linear acceleartion

Question 3

What is maculae?

Answer 3

Patch of sensory epithelium on saccule and utricle
Hair cells embedded in otolith membrane with otoconia
Vestibular ganglion cell axons

Question 4

Whats different about the hair cells in the cochlea compared with the vestibule

Answer 4

Vestibuke has kinocilia that are not degenerated

Question 5

How is angular acceleration detected?

Answer 5

Ampullae, swelling at base of semicircular cannal

Comprised of cupula, hair bundles, crista.

Question 6

How many semicircular canals are there?

Answer 6

3 perpendicular to each other

Question 7

What is the vestibulo-occular reflex?

Answer 7

Eye movements fixed, whilst head can move

Question 8

What is nystagmus

Answer 8

Repeated oscillatory movements of the eye following rotation of the head