Exam 1

Question 1

Bone vibrator

Answer 1

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

Question 2

Chief Complaint

Answer 2

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

Question 3

Bone conductor

Answer 3

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

Question 4

Artificial mastoid

Answer 4

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.

Question 5

Attenuate

Answer 5

To reduce the intensity level of a sound.

Question 6

Insert earphones

Answer 6

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.

Question 7

Ambient noise

Answer 7

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

Question 8

Supra-aural earphones

Answer 8

Type of earphone that rests on the pinna.

Question 9

Transducer

Answer 9

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

Question 10

Cerumen

Answer 10

Sticky acidic substance secreted from glands.

Question 11

Masking

Answer 11

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

Question 12

Informed Consent

Answer 12

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

Question 13

Arificial ear

Answer 13

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

Question 14

Listening check

Answer 14

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

Question 15

Calibration

Answer 15

Electronic or psychoacoustic determination that an electrical device is functioning.

Question 16

Phon curve

Answer 16

Shows how equal loudness changes over frequency

Question 17

Conductive

Answer 17

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

Question 18

dB SL

Answer 18

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

Question 19

Rarefaction

Answer 19

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

Question 20

Basilar membrane

Answer 20

Organ of corti sits on top of this.

Question 21

Simple Harmonic Motion

Answer 21

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

Question 22

Tonotopic Organization

Answer 22

Specialized arrangement of nerve fibers within the cochlea.

Question 23

Mixed

Answer 23

Hearing loss in inner and outer/middle ear.

Question 24

Sensorineural

Answer 24

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

Question 25

Helicotrema

Answer 25

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

Question 26

Condensation

Answer 26

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

Question 27

dB SPL

Answer 27

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

Question 28

dB HL

Answer 28

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

Question 29

Impedence Matching Transformer

Answer 29

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

Question 30

Outer

Answer 30

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.

Question 31

One half (50%)

Answer 31

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

Question 32

Six

Answer 32

Up to 6 in 1000 children born with hearing impairment.

Question 33

Otology

Answer 33

Medical specialty that treats diseases of the ear.

Question 34

1920s

Answer 34

Audiometers started being used in clinical hearing tests.

Question 35

Northwestern

Answer 35

First academic program of audiology was established at Northwestern University

Question 36

PAL

Answer 36

One of the first hearing research centers in US at Harvard

Question 37

Bell

Answer 37

Harvey Fletcher worked at Bell Lab.

Question 38

1970s

Answer 38

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

Question 39

Audiometer

Answer 39

Device for measuring hearing.

Question 40

Au.D. Doctor of Audiology degree

Answer 40

Minimum academic degree

Question 41

Cochlear implant

Answer 41

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

Question 42

Licensure

Answer 42

Credential required by states in the US

Question 43

Hearing aid

Answer 43

Electrical device that amplifies sound to improve hearing and communication.

Question 44

Code of ethics

Answer 44

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

Question 45

Prevalence

Answer 45

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

Question 46

Sound impact..

Answer 46

Temp and mass

Question 47

4 parameters describing simple harmonic motion

Answer 47

Frequency Amplitude Period Phase

Question 48

3 parts of human ear

Answer 48

Outer- Acoustic Middle- Mechanical Inner- Fluid