Ch 14 Special Sense Organs and the PNS (Ears)

Question 1

we depend on ears not only for sense of hearing but also for _

Answer 1

sense of equilibrium

Question 2

3 divisions of the ear

Answer 2

outer ear, middle ear, inner ear

Question 3

visible part of the ear, ends at the tympanic membrane; functions in collecting sound waves & directing them into the ear canal

Answer 3

external ear

Question 4

air-filled cavity containing 3 tiny bones (malleus, incus, stapes)

Answer 4

middle ear

Question 5

contains the cochlea and semicircular canals

Answer 5

inner ear

Question 6

receptors for sense of balance

Answer 6

semicircular canals

Question 7

receptors for sense of hearing

Answer 7

cochlea

Question 8

-ory

Answer 8

pertaining to

Question 9

acoust/o, audi/o

Answer 9

hearing

Question 10

adenoid/o

Answer 10

adenoids

Question 11

aur/o, auricul/o, ot/o

Answer 11

ear

Question 12

cerumin/o

Answer 12

ear wax

Question 13

cochle/o

Answer 13

cochlea

Question 14

myring/o, tympan/o

Answer 14

eardrum

Question 15

salping/o

Answer 15

eustachian tube

Question 16

lowest intensity at which a young, normal ear can detect sound

Answer 16

0 dB

Question 17

tests that screen for both function of the auditory nerve & ability of ear structures to conduct sound waves to inner ear

Answer 17

tuning fork tests

Question 18

inflammation of the ears

Answer 18

otitis

Question 19

discharge from the ear

Answer 19

otorrhea

Question 20

pain in the ear

Answer 20

otalgia, aka earache

Question 21

inflammation of the middle ear

Answer 21

otitis media

Question 22

inflammation of the tympanic membrane

Answer 22

myringitis

Question 23

infection of one of the mastoid bones of the skull

Answer 23

mastoiditis

Question 24

external ear infection

Answer 24

otitis externa aka otomycosis (swimmer’s ear)

Question 25

inner ear infection, inflammation of the inner ear, can affect both hearing and equilibrium

Answer 25

otitis interna

Question 26

hardening of the ear; caused by formation of spongy bone around structures of the middle and inner ear; hereditary and leads to hearing impairment

Answer 26

otosclerosis

Question 27

noise in the ears

Answer 27

tinnitus

Question 28

chronic disease of the inner ear with recurring episodes of hearing loss, tinnitus, and vertigo

Answer 28

Meniere disease

Question 29

dizziness

Answer 29

vertigo

Question 30

implanted device that assists hearing by electrically stimulating the cochlea

Answer 30

cochlear implant

Question 31

surgical repair or reconstruction of the external ear

Answer 31

otoplasty

Question 32

surgical creation of an opening through the eardrum to promote drainage and/or allow the introduction of artificial tubes to maintain the opening

Answer 32

tympanostomy

Question 33

medications that are used to soften and break down earwax

Answer 33

ceruminolytics