Question 1

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)   AstigmatismF) C) and E)
G) D) and E)

Question 2

What is the only sense in which signals can reach the cerebral cortex without passing first through the thalamus?

Accepted Answer

A)   Touch
B)   Olfaction
C)   Gustation
D)   Vision
E)   EquilibriumF) C) and D)
G) A) and D)

Question 3

Which structure allows upper respiratory infections to spread from the throat to the tympanic cavity?

Accepted Answer

A)   Oval window
B)   Cochlear duct
C)   Auditory canal
D)   Auditory (eustachian) tube
E)   Tympanic cavityF) A) and D)
G) B) and D)

Question 4

Which of the following does not contribute to the sense of equilibrium?

Accepted Answer

A)   Otolithic membrane
B)   Semicircular canals
C)   Saccule
D)   Utricle
E)   Vallate papillaeF) D) and E)
G) A) and E) E

Question 5

Which of the following is not an analgesic (pain reliever) found naturally in the central nervous system?

Accepted Answer

A)   Endogenous opioid
B)   Dynorphin
C)   Enkephalins
D)   Endorphins
E)   BradykininF) B) and D)
G) B) and C) E

Question 6

Each upward movement of the basilar membrane causes the stereocilia of the inner hair cells to bend,opening __________ gates.

Accepted Answer

A)   K+
B)   Na+
C)   Ca2+
D)   Cl-
E)   Mg2+F) All of the above
G) None of the above

Question 7

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 endF) B) and C)
G) A) and D)

Question 8

You can smell the fragrance of your deodorant when you just put it on,but after a little while the smell fades.What explains this phenomenon?

Accepted Answer

A)   The sensory projection of olfaction
B)   The projection pathway of olfaction
C)   The tonic nature of olfaction
D)   The phasic nature of olfaction
E)   The fast adaptation of the primary olfactory cortex to the smell of your deodorantF) B) and D)
G) B) and C)

Question 9

What is a sensation?

Accepted Answer

A)   A response of a sensory receptor
B)   A response of a sensory organ
C)   A subjective awareness of a stimulus
D)   An unconscious response to a stimulus
E)   A response to any conscious stimulusF) D) and E)
G) B) and C)

Question 10

Which of the following structures houses the spiral organ?

Accepted Answer

A)   Cochlea
B)   Vestibule
C)   Semicircular duct
D)   Stapes
E)   Tympanic cavityF) A) and B)
G) C) and D)

Question 11

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 organF) A) and E)
G) All of the above

Question 12

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 potentialF) A) and B)
G) A) and C)

Question 13

Olfaction results from the stimulation of chemoreceptors.

Accepted Answer

A) True 
 B)False

Question 14

The three types of cones in the retina are differentiated from one another by what feature?

Accepted Answer

A)   The absorption peak of their photopsin
B)   The width of their outer segment
C)   Whether they contain cis-retinal or trans-retinal or both
D)   The number of discs in their outer segmentE) A) and C)
F) All of the above A

Question 15

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

Accepted Answer

A) True 
 B)False

Question 16

Where do most second-order somesthetic neurons synapse with third-order neurons?

Accepted Answer

A)   Midbrain
B)   Thalamus
C)   Spinothalamic tract
D)   Hypothalamus
E)   Postcentral gyrusF) A) and B)
G) A) and C)

Question 17

Rods secrete glutamate from the base of the cell when exposed to light.

Accepted Answer

A) True 
 B)False

Question 18

Fast pain is a localized response mediated by myelinated nerve fibers.

Accepted Answer

A) True 
 B)False

Question 19

The vestibule contains organs of hearing and equilibrium.

Accepted Answer

A) True 
 B)False

Question 20

The ossicles belong to the middle ear.

Accepted Answer

A) True 
 B)False

Exam 16: Sense Organs

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

Correct AnswerverifiedShow Answer

What is the only sense in which signals can reach the cerebral cortex without passing first through the thalamus?

Correct AnswerverifiedShow Answer

Which structure allows upper respiratory infections to spread from the throat to the tympanic cavity?

Correct AnswerverifiedShow Answer

Which of the following does not contribute to the sense of equilibrium?

Correct AnswerverifiedE

Which of the following is not an analgesic (pain reliever) found naturally in the central nervous system?

Correct AnswerverifiedE

Each upward movement of the basilar membrane causes the stereocilia of the inner hair cells to bend,opening __________ gates.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

You can smell the fragrance of your deodorant when you just put it on,but after a little while the smell fades.What explains this phenomenon?

Correct AnswerverifiedShow Answer

What is a sensation?

Correct AnswerverifiedShow Answer

Which of the following structures houses the spiral organ?

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

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

Correct AnswerverifiedShow Answer

Olfaction results from the stimulation of chemoreceptors.

Correct AnswerverifiedShow Answer

The three types of cones in the retina are differentiated from one another by what feature?

Correct AnswerverifiedA

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

Correct AnswerverifiedShow Answer

Where do most second-order somesthetic neurons synapse with third-order neurons?

Correct AnswerverifiedShow Answer

Rods secrete glutamate from the base of the cell when exposed to light.

Correct AnswerverifiedShow Answer

Fast pain is a localized response mediated by myelinated nerve fibers.

Correct AnswerverifiedShow Answer

The vestibule contains organs of hearing and equilibrium.

Correct AnswerverifiedShow Answer

The ossicles belong to the middle ear.

Correct AnswerverifiedShow Answer

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