Question 1

The cochlear duct (scala media) contains________ .

Accepted Answer

A)  otolymph
B)  epilymph
C)  endolymph
D)  perilymphE) None of the above
F) A) and B)

Question 2

The bony labyrinth is part of the ________.

Accepted Answer

A)  internal ear
B)  middle ear
C)  external earD) A) and B)
E) A) and C)

Question 3

Of the following tests of balance, which one demonstrates that vision is important for balance?

Accepted Answer

A)  being rotated on a chair, after which the observers look for nystagmus
B)  walking in a straight line, one foot in front of the other
C)  standing and simultaneously beginning a task that requires mental concentrationD) B) and C)
E) A) and C)

Question 4

What test assesses the proprioceptors involved with posture?

Accepted Answer

A)  Barany test
B)  Rinne test
C)  Romberg test
D)  Weber testE) A) and B)
F) A) and C)

Question 5

The middle ear ________.

Accepted Answer

A)  contains the actual organs of hearing (the cochlea) and equilibrium (the vestibular apparatus) 
B)  carries and amplifies the vibrations of sound waves across three little bones
C)  conducts sound waves through a canal toward the tympanic membraneD) A) and B)
E) A) and C)

Question 6

Within the vestibular apparatus, this structure is involved in dynamic equilibrium.

Accepted Answer

A)  saccule
B)  the semicircular canals
C)  utricleD) All of the above
E) B) and C)

Question 7

Pressure waves passing through the perilymph of the cochlea compress the vestibular membrane, and ultimately displace the basilar membrane. What is true of these waves?

Accepted Answer

A)  High frequency waves (high notes) depress the basilar membrane midway along its length.
B)  High frequency waves (high notes) depress the basilar membrane closest to the distal end of the cochlea.
C)  High frequency waves (high notes) depress the basilar membrane all along its length.
D)  High frequency waves (high notes) depress the basilar membrane closest to the middle ear.E) B) and D)
F) None of the above

Question 8

Which of the following are good tests of the equilibrium apparatus?

Accepted Answer

A)  standing and simultaneously beginning a task that requires mental concentration
B)  walking in a straight line placing one foot in front of the other, standing and simultaneously beginning a task that requires mental concentration, and being rotated on a chair, after which the observers look for nystagmus
C)  being rotated on a chair, after which the observers look for nystagmus
D)  walking in a straight line, one foot in front of the otherE) A) and B)
F) All of the above

Question 9

Hair cells in the crista ampullaris are________ .

Accepted Answer

A)  embedded in a gelatinous cap
B)  responsive to gravitational pull
C)  topped with "heavy" crystals called otoliths
D)  embedded in the otolithic membraneE) B) and C)
F) All of the above

Question 10

The pharyngotympanic (auditory) tube connects the ________to the nasopharynx.

Accepted Answer

A)  middle ear
B)  tympanic membrane (eardrum) 
C)  internal ear
D)  external earE) B) and D)
F) C) and D)

Question 11

What is true of both the mechanism of hearing and the mechanism of equilibrium?

Accepted Answer

A)  Both require the movement of fluid, and both require vibrations.
B)  Both mechanisms require vibrations.
C)  Sound waves (hearing) and head location/movements in space (equilibrium) are both detected by hair receptor cells that are neurons.
D)  Both require the movement of fluid.E) All of the above
F) None of the above

Question 12

Sound localization can be tested by _________ .

Accepted Answer

A)  placing a tuning fork on the mastoid process
B)  placing a tuning fork on the frontal bone
C)  listening for the tick of a watch as the watch is held in various locations around the head
D)  undergoing an audiometry testE) A) and D)
F) A) and C) C

Question 13

Nystagmus is _________.

Accepted Answer

A)  trailing of eyes in one direction followed by rapid movement in the other direction
B)  maintaining the eyes in a fixed forward direction during rotation
C)  a sensation of dizziness and rotational movement when such movement is not occurringD) None of the above
E) All of the above A

Question 14

The name of the receptor region containing hair cells involved in detecting static equilibrium is ________.

Accepted Answer

A)  ampulla
B)  macula
C)  crista ampullaris
D)  ampullary cupulaE) C) and D)
F) A) and D)

Question 15

Conduction deafness occurs when sound waves cannot reach the fluids of the inner ear. Which one of the conditions below will not cause conduction deafness?

Accepted Answer

A)  damage to the ossicles
B)  damage to cochlear hair cells
C)  a perforated eardrum
D)  inflammation of the middle earE) None of the above
F) A) and C)

Question 16

Besides visual input, what other sensations contribute to the sense of equilibrium?

Accepted Answer

A)  sound detected in the cochlea
B)  strong leg muscles
C)  mental activities, such as counting backwards
D)  proprioceptors detecting information about neck musclesE) B) and D)
F) B) and C)

Question 17

Which of the structures below report head acceleration to the central nervous system?

Accepted Answer

A)  maculae
B)  semicircular canals
C)  cristae ampullares
D)  vestibuleE) None of the above
F) C) and D) C

Question 18

Which of the following might cause sensorineural deafness?

Accepted Answer

A)  fusion of the auditory ossicles
B)  listening to very loud music on a daily basis
C)  rotating the head to relax neck muscles
D)  excess earwax in the external auditory canalE) B) and C)
F) A) and D)

Question 19

The hair cells that detect sound vibrations lie on the________ membrane.

Accepted Answer

A)  vestibular
B)  basilar
C)  tectorialD) A) and B)
E) A) and C)

Question 20

The receptor cells for hearing lie within the _________ in the ________.

Accepted Answer

A)  cochlear duct (scala media) ; spiral organ
B)  scala vestibuli; semicircular canal
C)  scala tympani; spiral organ
D)  cochlear duct (scala media) ; utricleE) A) and B)
F) B) and D)

Exam 25: Special Senses: Hearing and Equilibrium

The cochlear duct (scala media) contains________ .

Correct AnswerverifiedShow Answer

The bony labyrinth is part of the ________.

Correct AnswerverifiedShow Answer

Of the following tests of balance, which one demonstrates that vision is important for balance?

Correct AnswerverifiedShow Answer

What test assesses the proprioceptors involved with posture?

Correct AnswerverifiedShow Answer

The middle ear ________.

Correct AnswerverifiedShow Answer

Within the vestibular apparatus, this structure is involved in dynamic equilibrium.

Correct AnswerverifiedShow Answer

Pressure waves passing through the perilymph of the cochlea compress the vestibular membrane, and ultimately displace the basilar membrane. What is true of these waves?

Correct AnswerverifiedShow Answer

Which of the following are good tests of the equilibrium apparatus?

Correct AnswerverifiedShow Answer

Hair cells in the crista ampullaris are________ .

Correct AnswerverifiedShow Answer

The pharyngotympanic (auditory) tube connects the ________to the nasopharynx.

Correct AnswerverifiedShow Answer

What is true of both the mechanism of hearing and the mechanism of equilibrium?

Correct AnswerverifiedShow Answer

Sound localization can be tested by _________ .

Correct AnswerverifiedC

Nystagmus is _________.

Correct AnswerverifiedA

The name of the receptor region containing hair cells involved in detecting static equilibrium is ________.

Correct AnswerverifiedShow Answer

Conduction deafness occurs when sound waves cannot reach the fluids of the inner ear. Which one of the conditions below will not cause conduction deafness?

Correct AnswerverifiedShow Answer

Besides visual input, what other sensations contribute to the sense of equilibrium?

Correct AnswerverifiedShow Answer

Which of the structures below report head acceleration to the central nervous system?

Correct AnswerverifiedC

Which of the following might cause sensorineural deafness?

Correct AnswerverifiedShow Answer

The hair cells that detect sound vibrations lie on the________ membrane.

Correct AnswerverifiedShow Answer

The receptor cells for hearing lie within the _________ in the ________.

Correct AnswerverifiedShow Answer

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C

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A

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C

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The receptor cells for hearing lie within the _ in the .

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