csd ch 12

Question 1

deaf

Answer 1

a hearing loss at 90 dB or greater (profound)

Question 2

deaf community

Answer 2

persons who view deafness with a sense of pride that serves to unite members and positively shape their sense of self-identity

Question 3

intensity

Answer 3

amplitude of a vibration, measured in dB

Question 4

frequency

Answer 4

back and forth movement of a vibration, resulting in a certain number of cycles, expressed as Hertz. (cycles per second)

Question 5

peripheral auditory system

Answer 5

outer ear, middle ear, inner ear, vestibulocochlear nerve

Question 6

central auditory system

Answer 6

the auditory brain stem and the auditory cortex of the brain

Question 7

pinna

Answer 7

the most visible structure of the auditory system, made of cartilage covered with skin.

Question 8

tympanic membrane

Answer 8

eardrum, separates outer ear from middle ear

Question 9

cerumen

Answer 9

earwax

Question 10

eustachian tube

Answer 10

opening that connects the middle ear with the nasal-sinus cavity

Question 11

cochlea

Answer 11

the spiral cavity of the inner ear containing the organ of Corti, which produces nerve impulses in response to sound vibrations.

Question 12

conductive system

Answer 12

outer ear and middle ear, serves to collect, amplify, and conduct sound to the cochlea.

Question 13

microtia

Answer 13

small, malformed pinna

Question 14

atresia

Answer 14

a disorder in which there is complete closure of the external auditory meatus; because sound cannot travel through the ear canal in the usual manner, there is hearing loss.

Question 15

otitis media

Answer 15

an inflammation of the mucous membrane lining of the middle ear cavity; common cause of conductive hearing loss in children

Question 16

otitis media with effusion (ome)

Answer 16

secretion of fluid in the middle ear, cause by negative middle ear pressure

Question 17

PE tubes (pressure equalization or tympanostomy)

Answer 17

treatment method of otitis media by draining the fluid with insertion of tubes into the tympanic membrane.

Question 18

congenital

Answer 18

present at birth

Question 19

Sensorineural system

Answer 19

cochlea and auditory nerve

Question 20

prelingually

Answer 20

before speech and language skills have developed

Question 21

postlingually

Answer 21

after spoken language skills are acquired

Question 22

aplasia/dysplasia

Answer 22

hearing loss due to absence or malformation of inner ear structures during embryonic development

Question 23

Presbycusis

Answer 23

some degree of hearing loss caused through the aging process; can be due to loss of cochlear hair cells, reduced responsiveness of the hair cells, or loss of auditory nerve fibers

Question 24

myringotomy

Answer 24

incision in the tympanic membrane to drain fluid from the middle ear, often followed by PE tubes

Question 25

Aural habilitation/rehabilitation

Answer 25

intervention aimed at minimizing and alleviating the communication difficulties associated with hearing loss.

Question 26

aural habilitation

Answer 26

intervention conducted with individuals whose hearing loss occurred at an early age and therefore prevented normal development of auditory and spoken language skills.

Question 27

aural rehabilitation

Answer 27

services and therapies provided to individuals who have lost their hearing later in life, after spoken language skills have fully developed.