Question 1

_______ is a neurotransmitter that produces the sensation of itch by stimulating neurons in the dorsal horn of the spinal cord.

Accepted Answer

Natriureti...

Question 2

Which receptors are fast-adapting?

Accepted Answer

A)   Meissner's and Pacinian corpuscles
B)   Meissner's corpuscles and Merkel's discs
C)   Merkel's discs and Ruffini's endings
D)   Ruffini's endings and Pacinian corpusclesE) A) and B)
F) All of the above

Question 3

You have managed to isolate and knock out the gene that controls the myelination of nerve fibers. This will cause the loss of most sensory functions except which of the following?

Accepted Answer

A)   Touch
B)   Temperature
C)   Itch
D)   b & cE) A) and B)
F) A) and C)

Question 4

Write a coherent and informative paragraph incorporating each of the following terms or concepts: social rejection; cingulate; physical injury; natural selection.

Accepted Answer

Social rejection is a powerful force tha...

Question 5

According to the range fractionation hypothesis,

Accepted Answer

A)   multiple sensory cells respond to exactly the same range of stimulus energies.
B)   specific nerve cells can act as specialists in particular segments of an intensity scale.
C)   multiple nerve cells in a particular sensory system have approximately the same thresholds.
D)   a large group of nerve cells can only respond to a small range of stimulus intensities.E) A) and B)
F) All of the above

Question 6

For most senses, the sensory pathway

Accepted Answer

A)   goes directly to its designated area of cortex.
B)   ends at the spinal cord.
C)   passes through the temporal cortex.
D)   passes through the thalamus.E) All of the above
F) None of the above

Question 7

Write a coherent and informative paragraph incorporating each of the following terms or concepts: opiates; pain relief; periaqueductal gray; spinal cord.

Accepted Answer

Opiates are a class of drugs that are co...

Question 8

Observations of pain-related behavior in both humans and nonhuman animals have led Dennis and Melzack to conclude that pain

Accepted Answer

A)   is inversely correlated with survival.
B)   leads only to discomfort and should be aggressively prevented.
C)   provokes adaptive behavior that minimizes injury and promotes healing.
D)   elicits aggression from conspecifics.E) All of the above
F) B) and D)

Question 9

Analgesics that act on the _______ opioid receptor are more effective in men than in women.

Accepted Answer

A)   
B)   
C)   
D)   E) A) and C)
F) A) and D)

Question 10

Receptors in the skin that have small, sharp borders are _______ and _______.

Accepted Answer

A)   Merkel's discs; Meissner's corpuscles
B)   Ruffini's endings; Meissner's corpuscles
C)   Pacinian corpuscles; Merkel's discs
D)   Ruffini's endings; Pacinian corpuscles.E) None of the above
F) A) and D)

Question 11

Which skin receptors are especially sensitive to stretching of the skin?

Accepted Answer

A)   Ruffini's endings
B)   Pacinian corpuscles
C)   Merkel's discs
D)   Meissner's corpusclesE) A) and B)
F) None of the above

Question 12

Pain perception is adaptive because it triggers

Accepted Answer

A)   emotional withdrawal.
B)   an inflammatory response.
C)   behavior that removes the animal from the stimulus.
D)   inactivity.E) All of the above
F) B) and D)

Question 13

Which animal has eyes specialized for nocturnal foraging?

Accepted Answer

A)   Tarsier
B)   Bald eagle
C)   Sparrow
D)   ChameleonE) B) and C)
F) A) and D)

Question 14

Provide a thorough account of somatosensory perception, from the transduction of environmental energies at the skin surface to the representation of touch in the cortex; explain the role of the cortex in actively forming an appreciation of manipulated objects.

Accepted Answer

Somatosensory perception refers to the p...

Question 15

Stimulation of a Pacinian corpuscle causes the opening of _______ gated _______ channels.

Accepted Answer

A)   voltage-; potassium
B)   mechanically; sodium
C)   mechanically; calcium
D)   ligand-; chlorideE) B) and C)
F) All of the above

Question 16

What is stress-induced analgesia? Provide an example and briefly discuss a possible mechanism and rationale.

Accepted Answer

Stress-induced analgesia refers to the p...

Question 17

Summarize the functioning of peripheral pain mechanisms and their projections within the spinal cord.

Accepted Answer

Peripheral pain mechanisms refer to the ...

Question 18

Evidence indicates that

Accepted Answer

A)   social hurt activates different regions of the brain.
B)   only extreme emotional sadness activates pain centers in the brain.
C)   social hurt and physical pain activate the same regions of the brain.
D)   social rejection affects different brain centers than physical pain and is alleviated by placebos.E) A) and B)
F) A) and C)

Question 19

Knockout mice that lack either the gene for the precursor for substance P or the gene for the substance P receptor exhibit

Accepted Answer

A)   total insensitivity to pain stimuli.
B)   insensitivity to mildly painful stimuli but normal responses to intensely painful stimuli.
C)   insensitivity to intensely painful stimuli but normal responses to mildly painful stimuli.
D)   exaggerated responses to mildly painful stimuli.E) A) and B)
F) None of the above

Question 20

Describe the mechanisms of the nervous system that function to modulate pain perception.

Accepted Answer

The nervous system has several mechanism...

Exam 8: General Principles of Sensory Processing, Touch, and Pain

Stimulation of a Pacinian corpuscle causes the opening of _______ gated _______ channels.

Correct AnswerverifiedShow Answer

Which receptors are fast-adapting?

Correct AnswerverifiedShow Answer

Which skin receptors are especially sensitive to stretching of the skin?

Correct AnswerverifiedShow Answer

Analgesics that act on the _______ opioid receptor are more effective in men than in women.

Correct AnswerverifiedShow Answer

_______ is a neurotransmitter that produces the sensation of itch by stimulating neurons in the dorsal horn of the spinal cord.

Correct AnswerverifiedNatriureti...View AnswerShow Answer

Pain perception is adaptive because it triggers

Correct AnswerverifiedShow Answer

You have managed to isolate and knock out the gene that controls the myelination of nerve fibers. This will cause the loss of most sensory functions except which of the following?

Correct AnswerverifiedShow Answer

According to the range fractionation hypothesis,

Correct AnswerverifiedShow Answer

Which animal has eyes specialized for nocturnal foraging?

Correct AnswerverifiedShow Answer

For most senses, the sensory pathway

Correct AnswerverifiedShow Answer

What is stress-induced analgesia? Provide an example and briefly discuss a possible mechanism and rationale.

Correct AnswerAnswered by ExamLex AIStress-induced analgesia refers to the p...View AnswerShow Answer

Provide a thorough account of somatosensory perception, from the transduction of environmental energies at the skin surface to the representation of touch in the cortex; explain the role of the cortex in actively forming an appreciation of manipulated objects.

Correct AnswerAnswered by ExamLex AISomatosensory perception refers to the p...View AnswerShow Answer

Describe the mechanisms of the nervous system that function to modulate pain perception.

Correct AnswerAnswered by ExamLex AIThe nervous system has several mechanism...View AnswerShow Answer

Write a coherent and informative paragraph incorporating each of the following terms or concepts: opiates; pain relief; periaqueductal gray; spinal cord.

Correct AnswerAnswered by ExamLex AIOpiates are a class of drugs that are co...View AnswerShow Answer

Evidence indicates that

Correct AnswerverifiedShow Answer

Observations of pain-related behavior in both humans and nonhuman animals have led Dennis and Melzack to conclude that pain

Correct AnswerverifiedShow Answer

Summarize the functioning of peripheral pain mechanisms and their projections within the spinal cord.

Correct AnswerAnswered by ExamLex AIPeripheral pain mechanisms refer to the ...View AnswerShow Answer

Receptors in the skin that have small, sharp borders are _______ and _______.

Correct AnswerverifiedShow Answer

Write a coherent and informative paragraph incorporating each of the following terms or concepts: social rejection; cingulate; physical injury; natural selection.

Correct AnswerAnswered by ExamLex AISocial rejection is a powerful force tha...View AnswerShow Answer

Knockout mice that lack either the gene for the precursor for substance P or the gene for the substance P receptor exhibit

Correct AnswerverifiedShow Answer

Stimulation of a Pacinian corpuscle causes the opening of _ gated _ channels.

Correct Answer
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Natriureti...
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
Answered by ExamLex AI
Stress-induced analgesia refers to the p...
View Answer

Correct Answer
Answered by ExamLex AI
Somatosensory perception refers to the p...
View Answer

Correct Answer
Answered by ExamLex AI
The nervous system has several mechanism...
View Answer

Correct Answer
Answered by ExamLex AI
Opiates are a class of drugs that are co...
View Answer

Correct Answer
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Correct Answer
verified

Correct Answer
Answered by ExamLex AI
Peripheral pain mechanisms refer to the ...
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Receptors in the skin that have small, sharp borders are _ and _.

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Correct Answer
Answered by ExamLex AI
Social rejection is a powerful force tha...
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Correct Answer
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