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Audiology > Exam 1 > Flashcards

Exam 1 Flashcards

1
Q

Bone vibrator

A

Small device (black plastic on the exterior and in square) that is used to present sounds (vibrations) to the skull in auditory assessment.

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2
Q

Chief Complaint

A

Main problem that brings a person to a health care professional.

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3
Q

Bone conductor

A

Transmission of sound from the surface of the skull at the mastoid or forehead to the fluids of the cochlea.

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4
Q

Artificial mastoid

A

Device for calibrating bone-conduction vibrators that is connected to a sound level meter that documents the intensity level in either decibels or units of force.

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5
Q

Attenuate

A

To reduce the intensity level of a sound.

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6
Q

Insert earphones

A

Type of earphone consisting of a transducer built into a small box and an acoustic tube for delivery of the sound stimulus to the ear.

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7
Q

Ambient noise

A

Background sound in an environment such as a room where hearing testing takes place.

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8
Q

Supra-aural earphones

A

Type of earphone that rests on the pinna.

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9
Q

Transducer

A

Electro-acoustic device for converting energy from one form to another.

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10
Q

Cerumen

A

Sticky acidic substance secreted from glands.

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11
Q

Masking

A

Noise presented to the non-test ear in a hearing test to prevent a response.

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12
Q

Informed Consent

A

Document signed by a patient indicating agreement to participate in clinical testing.

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13
Q

Arificial ear

A

Device for calibrating the sound produced by earphones used in air conduction hearing testing.

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14
Q

Listening check

A

Daily verification of the output of audiometers and earphones conducted with a normal hearing person.

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15
Q

Calibration

A

Electronic or psychoacoustic determination that an electrical device is functioning.

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16
Q

Phon curve

A

Shows how equal loudness changes over frequency

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17
Q

Conductive

A

Hearing loss that is a result of damage that occurs in the outer and/or middle ear.

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18
Q

dB SL

A

Reference decibel scale used to show intensity level above an individual’s own threshold.

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19
Q

Rarefaction

A

Thinning of air molecules that creates areas of decreased air pressure and density.

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20
Q

Basilar membrane

A

Organ of corti sits on top of this.

21
Q

Simple Harmonic Motion

A

Describes the movement of air particles that alt. in areas of condensation and rarefaction.

22
Q

Tonotopic Organization

A

Specialized arrangement of nerve fibers within the cochlea.

23
Q

Mixed

A

Hearing loss in inner and outer/middle ear.

24
Q

Sensorineural

A

Hearin loss in result to damage in the cochlea and/or retrocochlear pathway.

25
Q

Helicotrema

A

Open portion at the top of the cochlea where the scalae vestibuli and tympani communicate.

26
Q

Condensation

A

Forced displacement of air molecules that creates increased pressure and density areas.

27
Q

dB SPL

A

Reference decibel scale that expresses a ratio of measured sound pressure to a reference sound pressure.

28
Q

dB HL

A

Reference decibel scale used on an audiogram based on average of the softest intensity heard by young adults.

29
Q

Impedence Matching Transformer

A

Action of the middle ear system –> air to fluid medium.

30
Q

Outer

A

Hair cells in rows of 3 that are tuned to intensity and amplify sounds in the cochlea before they are sent to the auditory nerve.

31
Q

One half (50%)

A

Over the age of 75 yrs old, proportion of adults with hearing loss.

32
Q

Six

A

Up to 6 in 1000 children born with hearing impairment.

33
Q

Otology

A

Medical specialty that treats diseases of the ear.

34
Q

1920s

A

Audiometers started being used in clinical hearing tests.

35
Q

Northwestern

A

First academic program of audiology was established at Northwestern University

36
Q

PAL

A

One of the first hearing research centers in US at Harvard

37
Q

Bell

A

Harvey Fletcher worked at Bell Lab.

38
Q

1970s

A

Audiologist started becoming involved in the fitting and dispensing of hearing aids.

39
Q

Audiometer

A

Device for measuring hearing.

40
Q

Au.D. Doctor of Audiology degree

A

Minimum academic degree

41
Q

Cochlear implant

A

Complex electrical device that is used in the management of persons with severe or profound hearing loss.

42
Q

Licensure

A

Credential required by states in the US

43
Q

Hearing aid

A

Electrical device that amplifies sound to improve hearing and communication.

44
Q

Code of ethics

A

Document developed by a professional organization for guiding the professional behavior.

45
Q

Prevalence

A

Proportion of a population or # of persons that has a specific hearing loss.

46
Q

Sound impact..

A

Temp and mass

47
Q

4 parameters describing simple harmonic motion

A

Frequency
Amplitude
Period
Phase

48
Q

3 parts of human ear

A

Outer- Acoustic
Middle- Mechanical
Inner- Fluid

Audiology (1 decks)

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