Intro To Audiology

Question 1

the study of hearing and hearing disorders

Answer 1

Audiology

Question 2

The discipline involved in the prevention, identification, and evaluation of hearing disorders, the selection and evaluation of hearing aids, and the habilitation/ rehabilitation of individuals with hearing loss.

Answer 2

audiology

Question 3

Early Aural Rehab Team:

Answer 3

SLP, deaf educators, psychologists, and ENT.

Question 4

1936 to 1940, Northwestern:

Answer 4

instructor in speech reeducation

Question 5

The sound that we listen to is a form of energy, a

Answer 5

Soundwave

Question 6

will propagate through a ___.

Answer 6

Medium

Question 7

Conductive Mechanism of ear

Answer 7

Outer and middle ear

Question 8

Main purpose of middle ear

Answer 8

Prevent energy loss

Question 9

Sensory Mechanism

Answer 9

Inner ear

Question 10

When the sound reaches the cochlea, this is when ___ happens

Answer 10

Trasnduction

Question 11

What is transduction

Answer 11

you change the form from one form to another; from a sound wave to an electrical impulse

Question 12

Main purpose of inner ear

Answer 12

equalize the loss that could have happened in the cochlea by the mechanism of your ME

Question 13

If basag yung eardrums or sira yung
auricles, you’ll already have an HL of ___

Answer 13

Around 30dB

Question 14

● Sound collector
● Boosts acoustic pressure
- localizationn

Answer 14

Pinna

Question 15

Permit sound waves to reach the eardrum

Answer 15

Auditory canal

Question 16

● End of the external ear
● Absorbs sound vibration and passes it to
the cochlea

Answer 16

Eardrum

Question 17

Closed tube resonator → amplifies HF
sound waves

Answer 17

Outer ear

Question 18

Good nerve supply
Self cleaning mechanism of →epithelial migration
Sebaceous gland → cerumen

Answer 18

EAM

Question 19

● Transparent/translucent, pearl-gray, intact
● Anchored by annular or tympanic sulcus
● e ffective vibrating area is approximately 55mm2

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TM

Question 20

○ Thin epithelium and continuous with the lining of EAC.

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Outermost layer of TM

Question 21

What do we look for in an intact TM?

Answer 21

cone of light

Question 22

If the cone of light is pointing at 5:00 this is

Answer 22

right ear

Question 23

If the cone of light is pointing at 7 pm

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It’s the left ear

Question 24

Serves as bridge between the external
and inner ear

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Ossicular chain

Question 25

Three Ossicles

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○ Malleus ○ Incus ○ Stapes

Question 26

● Provides ventilation to the middle ear ● Can sometimes cause the feeling of fullness when the nose is blocked

Answer 26

Eustachian Tube

Question 27

● Balance organ ● Located adjacent to the hearing organ ● Allows a person to stand upright

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Vestibular Labyrinth

Question 28

● Converts sound waves into electrical signals understandable to the brain

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Cochlea

Question 29

● Carries electrical signals from the cochlea to the brain

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Auditory Nerve

Question 30

● Primary organ for audition ● TRANSDUCTION ● 2.5 turn ● Modiolus → bony ● Membranous channel

Answer 30

Cochlea

Question 31

● Organ of Corti → receptor end organ of hearing ● Rests w/in basilar membrane - Narrow at the base and wider at the apex

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scala media

Question 32

● Electrochemical neural information ● Inner and Outer Hair cells

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Organ of Corti

Question 33

The base of the basilar membrane has the ___ frequency

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Highest frequency

Question 34

The apex of the basilar membrane has ___ frequency

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Low frequency

Question 35

series of pressure waves caused by a vibrating object and propagated through an elastic medium.

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Sound

Question 36

the rate of sound pressure waves, or how often the molecules are displaced in a given period of time

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Frequency

Question 37

the amplitude of sound waves, or how far the molecules are displaced from their original position

Answer 37

Intensity

Question 38

the Interaction of various frequencies and intensities that make up sound

Answer 38

Complexity

Question 39

Inspect the pinna and the area around it for any abnormalities such as preauricular sinuses, skin tags, or atresia;

Answer 39

External ax of Pinna

Question 40

○ Check for position (set or tilt)of the ears, ○ Tenderness, redness or edema, signs of drainage, foul odor, wax build-up in the outer ear canal, or dermatitis.

Answer 40

External Ax of Pinna

Question 41

○ signs of drainage, ○ wax buildup, ○ foreign bodies,

Answer 41

Internal Ax of ear

Question 42

○ redness of the ear canal, ○ note presence or absence of normal tympanic membrane landmarks.

Answer 42

Internal ax of ear