Hearing

Question 1

cochlea

Answer 1

inner ear organ of hearing

Question 2

cochlear duct

Answer 2

within cochlea, filled with endolymph

Question 3

scala vestibuli

Answer 3

chamber filled with perilymph, superior

Question 4

scala tumpani

Answer 4

chamber filled with perilymph, inferior

Question 5

spiral organ/organ of corti

Answer 5

organ of hearing, contains hair cells

Question 6

tectorial membrane

Answer 6

overlying gelatinous mass containing extensions from the spiral organ

Question 7

sensory impulses…

Answer 7

are triggered on fibers of cochlear branch of vestibulocochlear nerve

Question 8

auditory cortex/temporal lobe

Answer 8

interprets sensory impulses

Question 9

pitch discrimination

Answer 9

sound wave of various frequencies stimulate different parts of basilar membrane

Question 10

loudness (intensity)

Answer 10

depends on amplitude of vibration

Question 11

louder sounds…

Answer 11

cause tympanic membrane to vibrate more in and out

Question 12

tinnitis

Answer 12

ringing in ears

Question 13

conductive hearing loss

Answer 13

eustachian tube: helps drain fluid, if clogged can cause lots of infections and hearing loss

Question 14

otitis

Answer 14

ear infection

Question 15

otitis externa

Answer 15

infection in external ear, caused by fluid build up (swimmers ear)

Question 16

otitis media

Answer 16

infection in middle ear

Question 17

otitis interna

Answer 17

infection in inner ear, can effect equilibrium