Deck 32: Physiology of the Ear

Question 1

Conduction deafness might be caused by damage to ________.

A) cochlea
B) tympanic membrane
C) cochlear nerve
D) basilar membrane

Answer 1

B

Question 2

As sound levels increase in the organ of Corti ________.

A) outer hair cells bend the cilia away from the kinocilium
B) inner hair cells bend the cilia away from the kinocilium
C) inner hair cells stiffen the basilar membrane
D) outer hair cells stiffen the basilar membrane

Answer 2

D

Question 3

What are the receptors for dynamic equilibrium?

A) maculae
B) ampulla
C) cristae
D) none of the above

Answer 3

C

Question 4

What is the hearing test that involves placing a tuning fork on the mastoid process?

A) Nystagmus
B) Weber's
C) Rinne
D) none of the above

Question 5

The eye movement called ________ is a tracking mechanism that occurs when a person is reading.

A) vertigo
B) nystagmus
C) saccades
D) none of the above

Question 6

The amplitude of sounds waves determines the ________.

A) pitch
B) loudness
C) location of sound
D) none of the above

Question 7

Which bone is attached to the tympanic membrane?

A) malleus
B) stapes
C) cochlea
D) incus

Question 8

Vibration of the ________ causes the hair cells of the cochlea to vibrate.

A) scala tympani
B) scala vestibule
C) basilar membrane
D) tectorial membrane

Question 9

What is the proper sequence of events that occurs in the ear when sound waves hit the tympanic membrane?

A) displacement of the auditory ossicles, pressure waves occur in the perilymph, the basilar membrane is displaced, stimulation of the cranial nerve VIII, vibration of hair cells against the tectorial membrane
B) displacement of auditory ossicles, pressure waves occur in the perilymph, the basilar membrane is distorted, vibration of hair cells against the tectorial membrane, stimulation of cranial nerve VIII
C) displacement of auditory ossicles, the basilar membrane is displaced, pressure waves occur in the perilymph, vibration of hair cells against the tectorial membrane, stimulation of cranial nerve VIII
D) none of the above

Question 10

What are the receptors for static equilibrium?

A) cristae
B) saccule
C) maculae
D) ampulla

Question 11

The number of compressed regions that pass a given point in one second is ________ of the sound.

A) pitch
B) decibels
C) intensity
D) hertz

Question 12

What part of the cochlea do the hair cells vibrate against?

A) basilar membrane
B) tectorial membrane
C) scala vestibule
D) scala tympani