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COMD 282 > exam 4 > Flashcards

exam 4 Flashcards

1
Q

what are the two parts of the outer ear

A

pina
ear canal

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2
Q

function of Pina

A

finals noise to ear drum

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3
Q

function of ear canal

A

amplify / louder

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4
Q

what are the two middle ear functions

A

overcome impedance mismatch
vestation tube- air pressure in ear

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5
Q

explain the difference between air conduction and bone conduction

A

air conduction:
- uses headphones to set noise signals into canal
- looks at entire system

bone conduction:
- device put behind ear to send signals directly to cochlea
- bypasses out and middle ear

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6
Q

how are the air and bone conduction used to determine whether someone has a conductive or sensorineural loss

A
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7
Q

what is impedance mismatch

A

there’s vibrations in the air -> in middle ear ossicles, -> s to small oval window -> fluid in mid ear overcomes mismatch

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8
Q

why is impedance mismatch important

A
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9
Q

what classifications of hearing loss are hearing aids used for

A

mild/moderate/severe hearing loss

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10
Q

what are three instrumental techniques that have had a large impact on clinical diagnostic practice

A

air fondue, bone conduction, and typhonametry

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11
Q

what are useful hearing subs for people who have had different types of hearing loss, with examples

A

conductive- medical treatment

sensorneural- hearing aids, assisted hearing device, cochlear implant

HA and AHD = loudness / amplify
CI- ___

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12
Q

what are the three tiny bones in the ear

A

MIS

Mallus (hammer - mallet)
Incus
Stapes

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13
Q

where are the ossicles located

A

middle ear

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14
Q

what do ossicles do

A

to transfer and amplify air vibrations into the inner ear to be processed as sound

correct impedence mismatch

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15
Q

would an audiologist recommend a CI for someone with mod to mild earring loss. why or why not

A

no!!
implant would make it worse, recommend hearing aid or assisted hearing device

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16
Q

why is tympanometry

A

test of middle ear efficiency

17
Q

what is tympanometry used for

A

if there is an obstruction of the mid ear

18
Q

what is the air-bone gap

A

term for different in threshold of headphones and bone osolators

19
Q

what is conductive hearing loss

A

something wrong in outer or middle ear

20
Q

a pacient comes in with complaints of earaches and redness in outer ear. they came back from a vacation where they were swimming in pools and lakes. they have swimmers ear. what type of hearing loss would this be and what is the treatment

A

conductive, with antibiodics (treatable)

21
Q

contrast hearing aids and cochlear implant

A
  • price
  • degree of hearing loss
  • battery in HA is small
22
Q

compare hearing aids and cochlear implant

A
23
Q

what are three elements that go into describing a hearing loss

A

type, degree, configuration

24
Q

describe the relationship between otitis media and reading disability

A
25
Q

why is it important that the basilar membrane varies in width and stiffness

A

it is connected to tonotipical arrangement.

accounts for its frequency-specific movement. High-frequency sounds produce maximal displacement of the basilar membrane at the base of the cochlea, whereas low-frequency sounds produce maximal displacement at the apex.

26
Q

what happens when hair cells die in the cochlea

A

hearing loss that does not come back

27
Q

what is the difference between Conductive hearing loss and sensorineural hearing loss regarding
- location within ear
- cause
- outcome of potential hearing loss

A

C-
location- outer/mid ear
cause-
outcome- reversible medical treated

N-
location- inner ear
cause- drugs, medication exposure, genetic
outcome- permanent

28
Q

what is the decibel scale

A

loudness scale

29
Q

what is impedance mismatch and how do we overcome it

A

when our ear turns air vibrations to move by fluid
ossicles help

30
Q

why is reading rope important to know

A

illustrates the steps of learning language and spelling
forces an understanding

31
Q

what is amplitude and how is it measured

A

loudness in decibels

32
Q

what is frequency and how is it measured

A

pitch in hertz

33
Q
A

COMD 282 (3 decks)

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