Question 1

The spiral organ is housed within which of the following structures?

Accepted Answer

A)  Scala vestibuli
B)  Scala tympani
C)  Cochlear duct
D)  Anterior semicircular duct
E)  Vestibule

Question 2

The human ear can detect what frequency of vibrations?

Accepted Answer

A)  5 to 20 Hz
B)  10 to 10,000 Hz
C)  20 to 20,000 Hz
D)  5 to 200,000 Hz
E)  100 to 100,000 Hz C

Question 3

A 100 dB sound (loud) of 150 Hz (low pitch) would cause which of the following to occur?

Accepted Answer

A)  The tectorial membrane to vibrate slightly near its distal end
B)  The tectorial membrane to vibrate vigorously near its proximal end
C)  The basilar membrane to vibrate slightly near its proximal end
D)  The basilar membrane to vibrate vigorously near its distal end
E)  The basilar membrane to vibrate slightly near its distal end

Question 4

The vestibule contains organs of hearing and equilibrium.

Accepted Answer

A) True 
 B)False

Question 5

The initial effect of a stimulus on a sensory receptor is a local electrical change specifically called a(an) __________.

Accepted Answer

A)  action potential
B)  graded potential
C)  local potential
D)  sensory potential
E)  receptor potential

Question 6

An eye with which of the following conditions does not need a corrective lens to focus the image?

Accepted Answer

A)  Hyperopia
B)  Myopia
C)  Presbyopia
D)  Emmetropia
E)  Astigmatism

Question 7

When you spin while sitting in a swivel chair with your eyes closed,you can sense this movement by means of your __________.

Accepted Answer

A)  cochlea
B)  saccule
C)  semicircular ducts
D)  utricle
E)  spiral organ (organ of Corti)

Question 8

Adjustment to close-range vision involves all of the following except __________.

Accepted Answer

A)  activity of the extrinsic eye muscles
B)  change in the curvature of the lens
C)  constriction of the pupil
D)  ciliary muscle activity
E)  light adaptation E

Question 9

The incus articulates with which bone(s) ?

Accepted Answer

A)  Malleus and stapes
B)  Malleus
C)  Stapes
D)  Malleus, stapes, and temporal
E)  Malleus, stapes, and tympanic A

Question 10

Which of the following is not considered an optic component of the eye?

Accepted Answer

A)  Aqueous humor
B)  Vitreous body
C)  Lens
D)  Retina
E)  Cornea

Question 11

The cornea belongs to the tunica fibrosa (fibrous layer)of the eyeball.

Accepted Answer

A) True 
 B)False

Question 12

Which of the following is not considered an accessory structure of the eye?

Accepted Answer

A)  Conjunctiva
B)  Palpebra
C)  Lacrimal apparatus
D)  Superior oblique
E)  Cornea

Question 13

Which of the following correctly describes the vestibular projection pathway to the brain?

Accepted Answer

A)  Vestibular nerve - vestibulocochlear nerve - vestibular nuclei - thalamus - cerebral cortex
B)  Vestibulocochlear nerve - vestibular nerve - vestibular nuclei - thalamus - cerebral cortex
C)  Vestibular nerve - vestibulocochlear nerve - thalamus - vestibular nuclei - cerebral cortex
D)  Vestibulocochlear nerve - vestibular nerve - thalamus - vestibular nuclei - cerebral cortex

Question 14

Changes in cerebrospinal fluid pH are detected by __________.

Accepted Answer

A)  thermoreceptors
B)  chemoreceptors
C)  nociceptors
D)  mechanoreceptors
E)  proprioceptors

Question 15

What event causes rhodopsin to go from violet to clear in color?

Accepted Answer

A)  Cis-retinal straightens to become trans-retinal
B)  Cis-retinal bends to become trans-retinal
C)  Trans-retinal straightens to become cis-retinal
D)  Trans-retinal bends to become cis-retinal

Question 16

Most somesthetic signals in the right side of the body reach the cerebral cortex in the contralateral primary somesthetic area.

Accepted Answer

A) True 
 B)False

Question 17

Vitamin A is necessary for the synthesis of rhodopsin.

Accepted Answer

A) True 
 B)False

Question 18

Human vision is limited to wavelengths ranging from __________ nm.

Accepted Answer

A)  4 to 70
B)  40 to 700
C)  400 to 700
D)  400 to 7,000
E)  4,000 to 7,000

Question 19

Which of these is most vulnerable to irreversible damage caused by a very loud noise?

Accepted Answer

A)  Ossicles
B)  Cochlear hair cells
C)  Tympanic membrane
D)  Fibers of the cochlear nerve
E)  Tectorial membrane

Question 20

The ossicles belong to the middle ear.

Accepted Answer

A) True 
 B)False

Exam 16: Sense Organs

The spiral organ is housed within which of the following structures?

Correct AnswerverifiedShow Answer

The human ear can detect what frequency of vibrations?

Correct AnswerverifiedC

A 100 dB sound (loud) of 150 Hz (low pitch) would cause which of the following to occur?

Correct AnswerverifiedShow Answer

The vestibule contains organs of hearing and equilibrium.

Correct AnswerverifiedShow Answer

The initial effect of a stimulus on a sensory receptor is a local electrical change specifically called a(an) __________.

Correct AnswerverifiedShow Answer

An eye with which of the following conditions does not need a corrective lens to focus the image?

Correct AnswerverifiedShow Answer

When you spin while sitting in a swivel chair with your eyes closed,you can sense this movement by means of your __________.

Correct AnswerverifiedShow Answer

Adjustment to close-range vision involves all of the following except __________.

Correct AnswerverifiedE

The incus articulates with which bone(s) ?

Correct AnswerverifiedA

Which of the following is not considered an optic component of the eye?

Correct AnswerverifiedShow Answer

The cornea belongs to the tunica fibrosa (fibrous layer)of the eyeball.

Correct AnswerverifiedShow Answer

Which of the following is not considered an accessory structure of the eye?

Correct AnswerverifiedShow Answer

Which of the following correctly describes the vestibular projection pathway to the brain?

Correct AnswerverifiedShow Answer

Changes in cerebrospinal fluid pH are detected by __________.

Correct AnswerverifiedShow Answer

What event causes rhodopsin to go from violet to clear in color?

Correct AnswerverifiedShow Answer

Most somesthetic signals in the right side of the body reach the cerebral cortex in the contralateral primary somesthetic area.

Correct AnswerverifiedShow Answer

Vitamin A is necessary for the synthesis of rhodopsin.

Correct AnswerverifiedShow Answer

Human vision is limited to wavelengths ranging from __________ nm.

Correct AnswerverifiedShow Answer

Which of these is most vulnerable to irreversible damage caused by a very loud noise?

Correct AnswerverifiedShow Answer

The ossicles belong to the middle ear.

Correct AnswerverifiedShow Answer

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