Exam 2 Part 2

Question 1

What is the probe tone of the loudspeaker in tympanometry?

Answer 1

220/226 Hz

Question 2

Use of tympanogram

Answer 2

Tympanometry

Question 3

What does the tympanometry test?

Answer 3

Physical volume test, physiological test

Question 4

True or false: tympanometry is a behavioral test

Answer 4

False

Question 5

Tests the stapedius muscle contraction when exposed to loud sound

Answer 5

Acoustic reflex

Question 6

What 2 things can cause hearing loss?

Answer 6

Incident exposure, prolonged exposure to a sound

Question 7

What happens to the acoustic reflex when there is hearing loss?

Answer 7

Acoustic reflex won’t be able to block quiet sounds from the exposure

Question 8

Protects us from our own voice so cochlear hair damage won’t occur

Answer 8

Stapedial reflex

Question 9

Measures the mobility and compliance of the tympanic membrane/conductive system

Answer 9

Tympanometry

Question 10

What is the normal physical volume test for adults?

Answer 10

.6-1.5 cc or mL

Question 11

What is the normal physical volume test for children?

Answer 11

.4-1.0 cc or mL

Question 12

What does a small physical volume indicate?

Answer 12

Obstruction

Question 13

What type of physical volume will someone have if they have middle ear fluid?

Answer 13

Normal

Question 14

What does a large physical volume indicate?

Answer 14

Perforation/ tubes

Question 15

Hard time popping eustachian tube open

Answer 15

poor eustachian tube function

Question 16

What can cause poor eustachian tube function if the tympanogram has a positive peak?

Answer 16

Diving, altitude change

Question 17

What happens to atmospheric pressure if you increase altitude?

Answer 17

Decreases

Question 18

What is the most common immittance test?

Answer 18

Tympanometry

Question 19

Involuntary motor response to a sensory stimulus; checks the neural integrity of the 7th and 8th cranial nerve

Answer 19

Acoustic reflex

Question 20

What is the pathway of the acoustic reflex arc (6)?

Answer 20

Cochlea, 8th cranial nerve, cochlear nucleus, superior olivary complex, lateral lemniscus, upper brainstem and cortex

Question 21

What is the pathway if a loud sound is detected in the acoustic reflex arc (4)?

Answer 21

Cochlear nucleus/superior olivary complex, facial nerve nucleus, 7th nerve, stapedius muscle contracts

Question 22

When 1 ear is stimulated by sound, it causes both stapedius muscles in each ear to contract

Answer 22

Sympathetic response

Question 23

What is the compliance like when a loud sound is given in the ear and the stapedius muscle works?

Answer 23

decreased