Chapter 17 Ear

Question 1

auditory canal

Answer 1

channel that leads from the pinna to the eardrum

Question 2

auditory meatus

Answer 2

auditory canal

Question 3

auditory nerve fibers

Answer 3

carry impulses from the inner ear to the brain (celebral cortex0
- these fibers compose the vestibulocochlear nerve (cranial nerve VIII)

Question 4

auditory tube

Answer 4

channel between the middle ear and nasopharyanx
-aka eustachian tube =

Question 5

auricle

Answer 5

protruding part of the ear
- aka pinna

Question 6

cerumen

Answer 6

waxy substance secreted by the external ear
aka earwax

Question 7

cochlea

Answer 7

snail shell shaped, spirally wound tube in the inner ear
- contains hearing-sensitive receptor cell

Question 8

endolymph

Answer 8

fluid within the labyrinth of the inner ear

Question 9

eustachian tube

Answer 9

auditory tube

Question 10

incus

Answer 10

2nd ossicle (small Bone) of the middle ear
- the anvil

Question 11

labyrinth

Answer 11

maze like series of the canals of the inner ear
- includes cochlea, vestibule, and semicircular canals

Question 12

malleus

Answer 12

1st ossicle of the middle ear
- the hammer

Question 13

organ of Corti

Answer 13

sensitive auditory receptor area found in the cochlea of the inner ear

Question 14

ossicle

Answer 14

small bone of the ear
- includes malleus, incus, and stapes

Question 15

oval window

Answer 15

membrane between the middle ear and inner ear

Question 16

pinna

Answer 16

auricle- flap of the ear

Question 17

semicircular canals

Answer 17

passages in the inner ear associated with maintaining stability

Question 18

tympanic memebrane

Answer 18

membrane between outer and middle ear
- aka eardrum

Question 19

vestibule

Answer 19

central cavity of the labyrinth connecting the semicircular canals and cochlea

Question 20

acoustic neuroma

Answer 20

benign arising from the acoustic vestibulocochlear nerve (8th cranial nerve) in the brain

Question 21

chloesteatoma

Answer 21

collection of skin cells and cholesterol in a sac within the middle ear

Question 22

deafness

Answer 22

loss of the ability to hear

Question 23

nerve deafness

Answer 23

impairment of the cochlea or auditory (acoustic) nerve

Question 24

conductive deafness

Answer 24

impairment of sound wave transmission from the external ear to thecochlea

Question 25

Meniere disease

Answer 25

disorder of the labyrinth of the inner ear - elevated endolymph pressure within cochlea and semicircular canals

Question 26

otitis media

Answer 26

inflammation of the middle ear

Question 27

acute otitis media

Answer 27

infection of the middle ear following upper respiratory system

Question 28

otosclerosis

Answer 28

hardening of the bony tissue of the middle ear

Question 29

tinnitus

Answer 29

sensation of the noises in the ears without an external source

Question 30

vertigo

Answer 30

sensation of irregular or whirling motion either of oneself or of external objects

Question 31

otoconia

Answer 31

calcium crystals moving around loose in the vestibule of the inner ear

Question 32

audiometry

Answer 32

testing the sense of hearing

Question 33

cochlear implant procedure

Answer 33

surgical insertion of a device that allows sensorineural hearing-impaired persons to understand speech

Question 34

ear thermometry

Answer 34

measurement of the temperature of the tympanic membrane by detection of infrared radiation from the eardrum

Question 35

otoscopy

Answer 35

visual exam of the ear canal with an otoscope

Question 36

tuning fork test

Answer 36

test of ear conduction using a vibration source

Question 37

AD

Answer 37

right ear

Question 38

AOM

Answer 38

acute otitis media

Question 39

AS

Answer 39

left ear

Question 40

BPPV

Answer 40

benign paroxysmal positional vertigo

Question 41

EENT

Answer 41

eyes, ears, nose, and throat

Question 42

ENG

Answer 42

electronystagmography - test of the balance mechanism of the inner ear by assessing eye movement

Question 43

ENT

Answer 43

ears, nose, and throat

Question 44

ETD

Answer 44

euschian tube dysfunction

Question 45

HEENT

Answer 45

head, eyes, ears, nose, and throat

Question 46

PE tube

Answer 46

pressure equalizing tube

Question 47

SOM

Answer 47

serous otitis media

Question 48

perilymph

Answer 48

fluid contained in the labyrinth of the inner ear

Question 49

pinna

Answer 49

flap of the ear - aka auricle