The Cutaneous Senses

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Question 1
Free
Multiple Choice

 The somatosensory system comprises _____ .

Choose correct answer/s
A

the cutaneous sensory system only

B

cutaneous sensations and proprioception only

C

cutaneous sensations and kinesthesis only

D

cutaneous sensations, proprioception, and kinesthesis

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Question 2
Free
Multiple Choice

 The outer layer of the skin is composed of _____ .

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A

a lipid layer

B

Meissner corpuscles

C

Pacinian corpuscles

D

dead skin cells

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Question 3
Free
Multiple Choice

 The _____ are located near the border of the epidermis and surface of the skin, and are associated with sensing fine details.

Choose correct answer/s
A

Pacinian corpuscle

B

Meissner corpuscles

C

Ruffini cylinders

D

Merkel receptors

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Question 4
Free
Multiple Choice

 Which mechanoreceptor is located deeper in the skin and responds continuously to stimulation and is associated with perceiving stretching of the skin

Choose correct answer/s
A

Pacinian corpuscles?

B

Ruffini cylinders

C

Merkel receptors

D

Meissner corpuscles

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Question 5
Free
Multiple Choice

 The _____ are responsible for the perception of rapid vibrations, such as you would experience when using a hand-held massager.

Choose correct answer/s
A

Pacinian corpuscles

B

Meissner corpuscles

C

Ruffini cylinders

D

Merkel receptors

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Question 6
Multiple Choice

 The Meissner corpuscle is associated with _____ .

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A
sensing vibrations
B
sensing fine texture
C
controlling handgrip
D
sensing fine details
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Question 7
Multiple Choice

 The nerve fibers in the spinal cord go in _____ .

Choose correct answer/s
A
the medial lemniscal pathway only
B
the spinothalamic pathway only
C
the geniculostriate pathway only
D
both the medial lemniscal pathway and the spinothalamic pathway
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Question 8
Multiple Choice

 Ian Waterman was able to sense pain and temperature because his _____ pathway was intact, but could not feel touch and limb position because of damage to his _____ pathway.

Choose correct answer/s
A
lemniscal; spinothalamic?
B
spinothalamic; lemniscal
C
homuncular; lemniscal
D
spinothermal; spinothalamic
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Question 9
Multiple Choice

 The fibers from the medial lemniscal pathway and the spinothalamic pathway go to the _____ .

Choose correct answer/s
A
lateral geniculate nucleus
B
medial geniculate nucleus
C
ventrolateral nucleus
D
hypothalamus
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Question 10
Multiple Choice

 Penfield mapped locations of body parts on area S1 by _____ .

Choose correct answer/s
A
using fMRIs in humans?
B
lesioning S1 areas in the monkey
C
using somatosensory-evoked potentials in monkeys
D
stimulating S1 areas in humans, and asking where they felt body sensations
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Question 11
Multiple Choice

 The mapping of the body on the somatosensory cortex can be represented as a(n) _____ .

Choose correct answer/s
A
homunculus
B
anosmia
C
epidermis
D
pachyderm
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Question 12
Multiple Choice

 The area on S1 associated with the thumb is as large as the area for the forearm. This is an example of _____ .

Choose correct answer/s
A
sensory substitution
B
Braille projection
C
cortical magnification
D
the analgesic inversion principle
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Question 13
Multiple Choice

 Which of the following is true regarding body mapping in the somatosensory cortex

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A
Body maps only appear in S1.
B
Body map regions are proportionate to the actual size of the body parts.
C
Body maps appear in both the frontal and parietal lobes.
D
Body maps appear in S1 and S2.
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Question 14
Multiple Choice

 Experience-dependent plasticity has been found to occur for _____ .

Choose correct answer/s
A
the somatosensory system only
B
the auditory system only
C
only the auditory and somatosensory systems
D
the somatosensory, auditory, and visual systems
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Question 15
Multiple Choice

 Jan is a right-handed violin player - she bows with her right hand and fingers the strings with her left. The cortical representation for the fingers on her left hand is _____ .

Choose correct answer/s
A
equal to the area for the fingers on her right hand
B
equal to the area for the fingers on the left hand of a non-musician
C
larger than the area for the fingers on the left hand of a non-musician
D
smaller than the area for the fingers on the left hand of a non-musician
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Question 16
Multiple Choice

 Which type of acuity is measured by pressing a grooved stimulus onto the skin and asking the person to indicate the orientation

Choose correct answer/s
A
grating
B
letter
C
two-point
D
Braille simulated
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Question 17
Multiple Choice

 Which body part is the most sensitive to detail

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A
fingertips
B
palms
C
forehead
D
upper arm
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Question 18
Multiple Choice

 The density of the _____ on the fingertips than on the palms.

Choose correct answer/s
A
Merkel receptors is higher
B
Krausse end bulbs is higher
C
Merkel receptors is lower
D
Pacinian corpuscles is lower
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Question 19
Multiple Choice

 The receptive fields of cortical S1 neurons are _____ .

Choose correct answer/s
A
larger for the fingers than for the forearm
B
larger for the fingers than for the hand
C
smaller for the fingers than the forearm
D
the same size for the fingers as for the hand
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Question 20
Multiple Choice

 The mechanoreceptors primarily responsible for feeling the vibrations from an electric toothbrush are _____ because these receptors contain an "onion-like" series of layers.

Choose correct answer/s
A
Pacinian corpuscles
B
Merkel receptors
C
Ruffini cylinders
D
Meissner corpuscles
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