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Flashcards in study guide Deck (56):
1

how many americans have hearing loss in both ears?

30 million

2

how many americans have hearing loss in at least one ear?

48 million

3

the prevalence of hearing loss increases with ___

age

4

hearing loss due to aging is called ____

presbycusis

5

________of every 1000 infants in the US are born with a moderate to severe congenital loss

2- 3

6

professionals engaged in autonomous practice to promote healthy hearing, communication competency, and quality of life for persons of all ages through the prevention, identification, assessment, and rehabilitation of hearing, auditory function, balance, and other related systems

audiologist

7

what are some of the different areas of audiology?

medical audiology
educational audiology
pediatric audiology
dispensing/ rehabilitative audiology
industrial audiology
tele-audiology
recreationa; and animal audiology

8

different settings audiologist can work in?

community/ university hospitals
ENT practices
private clinics
schools
manufacturers
department of veterans affairs medical centers and other state and federal agencies
military based programs
college and university settings

9

issued by a government agency and grants an individual the right to practice a given profession. most states model their regulatory rules in audiology after the ASHA standards for the certificate of clinical competence (CCC)

licensure

10

provides a different level of consumer protection by assuring that an individual has met rigorous and valid standards endorsed by a national professional body

certification

11

committed to enhancing the ability of its members to achieve career and practice objectives through professional development, education, research, increased awareness of hearing disorders, and audiologic services.

AAA american academy of audiology

12

decides on standards in audiology and speech language pathology and conducts accreditation programs for colleges and universities in both fields

ASHA american speech-language hearing association

13

designed to meet the professional needs of audiologists in private practice, especially those who directly dispense hearing aids

ADA academy of doctors of audiology

14

requirements in becoming an audiologist

-4 year undergraduate degree
- doctorate of audiology (minimal 4 years post undergrad, clinical degree)
-doctorate of philosophy (approx 4 years)
-combined Au.D./Ph.D. (approx 6 years)

15

the largest number of audiologists are currently employed in this field
they focus on diagnostic assessments for hearing or balance disorders.
works with all ages

medical audiology

16

minimize the impact that hearing loss has on the education of young children, and in the educational setting. they are responsible for identification of children with hearing loss and referral to other professional services as needed

educational audiology

17

their primary role is to facilitate parents' efforts to meet the many rehabilitative / habilitative challenges that the child and family with face.

pediatric audiology

18

they dispense, distribute, sell, and appropriately fit hearing amplification
they can dispense in practically any setting as long as a dispensing license is obtained from the state

dispensing/ rehabilitation audiology

19

OSHA requires monitoring of noise levels for workers
-Annual hearing evaluations
-Hearing protection
-Counseling employees

industrial audiologists

20

delivers and entire battery of hearing care services to persons in need who not have the means or opportunity to travel sometimes from great distances to receiver services traditionally located in urban areas

tele- audiology

21

they counsel about dog safety and communication issues, hearing conservation for services animals ( especially military working dogs)

recreational and animal audiology

22

peripheral auditory system- 3 parts

Outer ear
middle ear
inner ear

23

what are the 2 primary components of the outer ear

pinna (auricle)
ear canal

24

-composed of cartilage and skin. funnel shaped
-purpose is to collect and send sound waves through the ear canal
- sound localization and helps protect the entrance the external auditory canal

pinna ( auricle )

25

-long narrow canal leading to the eardrum
- meatus
-lined with epithelium and cilia, and contains glands in the cartilaginous portion that produces earwax

ear canal

26

what is another name for earwax

cerumen

27

a waxy and somewhat sticky substance

cerumen

28

what is the purpose of cerumen

protection; helps to keep the ear canal moisturized and clean of debris that could accumulate

29

external auditory meatus (EAM) or the external auditory canal (EAC) has two main functions:

1. to protect the delicate middle and inner ear
2. to increase the amplitude and high frequency sounds

30

the EAM terminates at the ______ which acts as the anatomic boundary between the Outer ear and middle ear

tympanic membrane

31

what is the middle ear composed of

tympanic membrane
ossicles
malleus
incus
stapes

32

anatomic boundary between the outer and middle ear

tympanic membrane (aka eardrum)

33

multiple layers of tissues

epithelial layer
fibrous layer
membranous layer

34

the middle ear cavity is _____

filled with air

35

ear bones; the smallest bones in the human body

ossicles

36

aka hammer; lateral most bone of the chain; connected to the eardrum

malleus

37

aka anvil; center bone of the chain

incus

38

aka stirrup; medial most bone, rocks in and out of the oval window

stapes

39

-equalizes air pressure between middle ear cavity and nasopharynx
-helps to drain fluids which might accumulate in ME into nasopharynx

eustachian ( auditory) tube

40

ligaments suspend _________ loosely in middle ear space, allowing for movement

ossicularchain

41

two muscles found in the middle ear

stapedius
tensor tympani

42

the middle ear serves as an ______

impedance matching device

43

impedance=

resistance

44

the middle ear helps equalize pressure between

middle ear cavity and nasopharynx
serves to protect the inner ear from intense sounds

45

2 labyrinths found in the inner ear

auditory labyrinth
vestibular labyrinth

46

auditory labyrinth consists of the

cochlea

47

cochlea is a

sensory end organ of hearing

48

vestibular labyrinth consists of

semicircular canals

49

semicircular canals are

sensory end organ of balance

50

what is fluid filled space within temporal bone and shaped like a snail shell, with 2 and 5/8's turns; three chambers

cochlea

51

upper portion filled with perilymph

scalavestibuli

52

middle portion filled with endolymph

scalamedia

53

lower portion filled with perilymph

scalatympani

54

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