Csd Test 3 (Ch 6)

Front 1

Acoustic Neuroma

Back 1

A tumor arising on the auditory (8th cranial) nerve.

Front 2

Acoustic Reflex

Back 2

the measurable contraction of the muscles of the middle ear in response to an intense sound

Front 3

Air conduction

Back 3

the pathway of sounds that includes the outer ear, middle ear, inner ear, and the structures beyond

Front 4

Air-Bone Gap

Back 4

the difference, in decibels, between the air-conduction threshold and the bone-conduction threshold.

Front 5

Audiogram

Back 5

a graph depicting the threshold of audibility (in decibels) as a function of different frequencies

Front 6

Audiometer

Back 6

a device used for the measurement of hearing

Front 7

Auditory brainstem response

Back 7

measurable responses in the brainstem to a series of acoustic stimuli

Front 8

Auditory Nerve

Back 8

the 8th cranial nerve that carries information from the inner ear to the brain about hearing and balance

Front 9

Bone conduction

Back 9

the pathway of sound that bypasses the conductive mechanism of the outer and middle ear by vibrating the skill and stimulating the cochlea of the inner ear.

Front 10

Central Auditory Processing Disorder

Back 10

difficulty in discriminating speech, often in the presence of background noise, and frequently in the absence of the loss of hearing sensitivity

Front 11

Cochlea

Back 11

a structure in the inner ear that converts the mechanical energy received from the middle ear into an electrochemical code for transmission to the brain

Front 12

Conductive Hearing Loss

Back 12

a loss of hearing sensitivity caused by damage to the outer and/or middle ear

Front 13

Hearing Level

Back 13

the reference that uses normal hearing in the scale of decibels

Front 14

Immittance

Back 14

measurement of the impedance of the tympanic membrane or admittance of sound to the middle ear

Front 15

Mastoid Process

Back 15

the bony protrusion behind the pinna

Front 16

Mixed Hearing Loss

Back 16

a combination of conductive and sensorineural hearing loss in the same ear

Front 17

Myringotomy

Back 17

incision into the tympanic membrane with insertion of a small ventilating tube

Front 18

Otitis Media

Back 18

Infection of the middle ear

Front 19

Otoacoustic Emission

Back 19

either spontaneous or evoked sounds emanating from the inner ear

Front 20

Otosclerosis

Back 20

a hearing loss caused by bony fixation of the stapes in the oval window

Front 21

Phonetically Balanced (PB) Word Lists

Back 21

Lists of 50 words that are supposed to contain all the phonetic elements of English speech. These lists are used for testing word recognition

Front 22

Sensation Level

Back 22

the number of decibels above the auditory threshold of an individual

Front 23

Sensorineural Hearing Loss

Back 23

hearing loss caused by damage to the inner ear and/or auditory nerve

Front 24

Speech-Recognition Threshold (SRT)

Back 24

the lowest intensity at which speech can barely be heard

Front 25

Spondee

Back 25

a two-syllable word pronounced with equal emphasis on both syllables. Used in testing the SRT.

Front 26

Threshold of Audibility

Back 26

the lowest intensity at which a signal can barely be heard.

Front 27

Tinnitus

Back 27

Ringing, roaring, or other sounds heard in the absence of an external sound.

Front 28

Tympantometry

Back 28

a pressure/compliance function that reveals the status of the middle ear.

Front 29

Vestibular mechanism

Back 29

the part of the inner ear responsible for reporting balance and equilibrium to the brain

Front 30

Word Recognition Score

Back 30

The score, in percent, that reveals the ability to discriminate among the sounds of speech.