Question 1

Depth perception comes about in large part because of binocular vision.

Accepted Answer

A) True 
 B)False

Question 2

The smaller the receptive fields in a region, the

Accepted Answer

A)   greater the density of receptors in the region
B)   greater the acuity in the region
C)   more cortical space allotted for sensory reception from the region
D)   all of these
E)   greater the density of receptors in the region and greater the acuity in the regionF) A) and B)
G) A) and C)

Question 3

Receptors

Accepted Answer

A)   respond to various physical or chemical changes in their environment
B)   change other forms of energy into electrical energy
C)   respond more readily to their adequate stimulus
D)   are found at the peripheral endings of afferent neurons
E)   all of theseF) B) and C)
G) A) and B)

Question 4

The term adequate stimulus refers to the intensity of a stimulus developing above a threshold value.

Accepted Answer

A) True 
 B)False

Question 5

The stronger the stimulus, the greater the frequency of action potentials generated and propagated in the afferent neuron.

Accepted Answer

A) True 
 B)False

Question 6

The optic track carries information from

Accepted Answer

A)   the lateral half of the retina on the same side and the medial half of the retina on the opposite side
B)   the lateral halves of both retinas
C)   the medial halves of both retinas
D)   the lateral half of the retina on the opposite side and the medial half of the retina on the same side
E)   both the lateral and medial halves of the retina on the same sideF) B) and D)
G) A) and E)

Question 7

Complete each of the following statments.
The rods and cones synapse with ____________________ cells, which in turn synapse with ganglion cells before entering the optic nerve.

Accepted Answer

The answer of Complete each of the following statments.
The rods...

Question 8

Which structure(s)  is/are associated with hearing?

Accepted Answer

A)   ampulla
B)   cochlea
C)   cupula
D)   cristae
E)   sacculeF) C) and D)
G) None of the above

Question 9

Complete each of the following statments.
The iris consists of layers of ____________________ and ____________________ smooth muscle fibers.

Accepted Answer

The answer of Complete each of the following statments.
The iris...

Question 10

Pacinian corpuscles

Accepted Answer

A)   adapt as a result of the physical features of the receptor
B)   detect temperature
C)   are tonic receptors
D)   do not display an "off-response"
E)   measure the degree of joint flexionF) A) and B)
G) None of the above

Question 11

Which neuromodulator is not capable of binding to opiate receptors in the analgesic pathways?

Accepted Answer

A)   bradykinin
B)   dynorphin
C)   endogenous opiates
D)   endorphins
E)   enkephalinsF) A) and C)
G) B) and E)

Question 12

The helicotrema allows sound waves to pass from the scalavestibuli into the scala media.

Accepted Answer

A) True 
 B)False

Question 13

The greatest density of rods is found in the fovea of the macula lutea.

Accepted Answer

A) True 
 B)False

Question 14

Light is the only stimulus capable of stimulating the photoreceptors of the eye.

Accepted Answer

A) True 
 B)False

Question 15

The term cataract refers to the condition in which the lens becomes stiff and loses its elasticity.

Accepted Answer

A) True 
 B)False

Question 16

The middle layer of the retina contains

Accepted Answer

A)   bipolar neurons
B)   convex cells
C)   ganglion cells
D)   hair cells
E)   rods and conesF) A) and E)
G) B) and C)

Question 17

The identical nerve pathway conveys information regarding pressure and temperature sensation of the thumb.

Accepted Answer

A) True 
 B)False

Question 18

The three types of cones are

Accepted Answer

A)   black, red, and white
B)   blue, green, and red
C)   blue, green, and white
D)   green, orange, and yellow
E)   orange, yellow, and whiteF) D) and E)
G) B) and E)

Question 19

Fluid movement in the cochlea causes

Accepted Answer

A)   displacement of the round window, which dissipates pressure
B)   deflection of the cupula
C)   the hairs of the receptor cells of the organ of Corti to be bent as they are moved in relation to the otoliths
D)   displacement of the round window, which dissipates pressure, and the hairs of the receptor cells of the organ of Corti to be bent as they are moved in relation to the otoliths
E)   all of theseF) All of the above
G) A) and E)

Question 20

Vision in bright light is chiefly due to cone activation.

Accepted Answer

A) True 
 B)False

Exam 6: A--The Peripheral Nervous System: Afferent Division; Special Senses

Fluid movement in the cochlea causes

Correct AnswerverifiedShow Answer

Complete each of the following statments. The iris consists of layers of ____________________ and ____________________ smooth muscle fibers.

Correct AnswerverifiedShow Answer

The identical nerve pathway conveys information regarding pressure and temperature sensation of the thumb.

Correct AnswerverifiedShow Answer

Vision in bright light is chiefly due to cone activation.

Correct AnswerverifiedShow Answer

The helicotrema allows sound waves to pass from the scalavestibuli into the scala media.

Correct AnswerverifiedShow Answer

Complete each of the following statments. The rods and cones synapse with ____________________ cells, which in turn synapse with ganglion cells before entering the optic nerve.

Correct AnswerverifiedShow Answer

Which neuromodulator is not capable of binding to opiate receptors in the analgesic pathways?

Correct AnswerverifiedShow Answer

The optic track carries information from

Correct AnswerverifiedShow Answer

Light is the only stimulus capable of stimulating the photoreceptors of the eye.

Correct AnswerverifiedShow Answer

The three types of cones are

Correct AnswerverifiedShow Answer

The middle layer of the retina contains

Correct AnswerverifiedShow Answer

The smaller the receptive fields in a region, the

Correct AnswerverifiedShow Answer

The term adequate stimulus refers to the intensity of a stimulus developing above a threshold value.

Correct AnswerverifiedShow Answer

Pacinian corpuscles

Correct AnswerverifiedShow Answer

The stronger the stimulus, the greater the frequency of action potentials generated and propagated in the afferent neuron.

Correct AnswerverifiedShow Answer

Which structure(s) is/are associated with hearing?

Correct AnswerverifiedShow Answer

Receptors

Correct AnswerverifiedShow Answer

Depth perception comes about in large part because of binocular vision.

Correct AnswerverifiedShow Answer

The term cataract refers to the condition in which the lens becomes stiff and loses its elasticity.

Correct AnswerverifiedShow Answer

The greatest density of rods is found in the fovea of the macula lutea.

Correct AnswerverifiedShow Answer

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Complete each of the following statments. The iris consists of layers of and smooth muscle fibers.

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