Chapter 17 Ear Flashcards

1
Q

auditory canal

A

channel that leads from the pinna to the eardrum

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2
Q

auditory meatus

A

auditory canal

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3
Q

auditory nerve fibers

A

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

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4
Q

auditory tube

A

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

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5
Q

auricle

A

protruding part of the ear
- aka pinna

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6
Q

cerumen

A

waxy substance secreted by the external ear
aka earwax

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7
Q

cochlea

A

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

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8
Q

endolymph

A

fluid within the labyrinth of the inner ear

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9
Q

eustachian tube

A

auditory tube

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10
Q

incus

A

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

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11
Q

labyrinth

A

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

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12
Q

malleus

A

1st ossicle of the middle ear
- the hammer

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13
Q

organ of Corti

A

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

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14
Q

ossicle

A

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

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15
Q

oval window

A

membrane between the middle ear and inner ear

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16
Q

pinna

A

auricle- flap of the ear

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17
Q

semicircular canals

A

passages in the inner ear associated with maintaining stability

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18
Q

tympanic memebrane

A

membrane between outer and middle ear
- aka eardrum

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19
Q

vestibule

A

central cavity of the labyrinth connecting the semicircular canals and cochlea

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20
Q

acoustic neuroma

A

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

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21
Q

chloesteatoma

A

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

22
Q

deafness

A

loss of the ability to hear

23
Q

nerve deafness

A

impairment of the cochlea or auditory (acoustic) nerve

24
Q

conductive deafness

A

impairment of sound wave transmission from the external ear to thecochlea

25
Q

Meniere disease

A

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

26
Q

otitis media

A

inflammation of the middle ear

27
Q

acute otitis media

A

infection of the middle ear following upper respiratory system

28
Q

otosclerosis

A

hardening of the bony tissue of the middle ear

29
Q

tinnitus

A

sensation of the noises in the ears without an external source

30
Q

vertigo

A

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

31
Q

otoconia

A

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

32
Q

audiometry

A

testing the sense of hearing

33
Q

cochlear implant procedure

A

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

34
Q

ear thermometry

A

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

35
Q

otoscopy

A

visual exam of the ear canal with an otoscope

36
Q

tuning fork test

A

test of ear conduction using a vibration source

37
Q

AD

A

right ear

38
Q

AOM

A

acute otitis media

39
Q

AS

A

left ear

40
Q

BPPV

A

benign paroxysmal positional vertigo

41
Q

EENT

A

eyes, ears, nose, and throat

42
Q

ENG

A

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

43
Q

ENT

A

ears, nose, and throat

44
Q

ETD

A

euschian tube dysfunction

45
Q

HEENT

A

head, eyes, ears, nose, and throat

46
Q

PE tube

A

pressure equalizing tube

47
Q

SOM

A

serous otitis media

48
Q

perilymph

A

fluid contained in the labyrinth of the inner ear

49
Q

pinna

A

flap of the ear
- aka auricle

50
Q
A