AUDItory and Vestibular

Question 1

Basilar Membrane

Answer 1

Bottom is stiff, High F.

Question 2

Organ of Corti

Answer 2

Has hair cells. Cochlea

Question 3

Sensorineural Hearing Loss

Answer 3

Damage to hair cells by Disease/ototoxicity/sound damage

Question 4

Conduction Hearing Loss

Answer 4

Problem conducting sound waves by ear wax, ear infection, ear drum perforation, pressure differences

Question 5

Stereocelia towards KINOCILIA

Answer 5

Depolarizing, results in receptor potential

Question 6

Otolithic organs

Answer 6

Detect linear accel. Utricle and Saccule

Question 7

Calcium Carbonate Crystals

Answer 7

weigh sheet of hair cells and cause membrane to lag and create shearing force

Question 8

Lateral Vestibulospinal Tract

Answer 8

Innervate otolithic organs and terminate on cells in the lat vestibular nuc

Question 9

Semicircular canals

Answer 9

detect angular accel. 1 horizontal, 2 vert.

Question 10

Cupula

Answer 10

Gelatinous membrane w hair cells

Question 11

Ampulae

Answer 11

Small swelling of canal

Question 12

Medial Longitudinal Fasiculus

Answer 12

Connects the vestibular nuc of brainstem to CN 3,4,6