Question 1

Parasympathetic functions include all of the following, except

Accepted Answer

A)   decrease in the rate of cardiac contraction.
B)   constriction of the pupils.
C)   dilation of the airways.
D)   stimulation of urination.
E)   stimulation of defecation.

Question 2

Parasympathetic stimulation

Accepted Answer

A)   increases heart rate.
B)   increases gastric motility.
C)   causes sweat glands to secrete.
D)   causes blood vessels in the skin to dilate.
E)   causes the pupils to dilate.

Question 3

Most vital organs receive ________ innervation. That is, they receive input from both sympathetic and parasympathetic divisions.

Accepted Answer

A)   single
B)   dual
C)   biaxial
D)   ambitonic
E)   autonomic

Question 4

Alzheimer's disease is characterized by all of the following except that it

Accepted Answer

A)   is the most common cause of senile dementia.
B)   is characterized by a progressive loss of memory.
C)   has a clear genetic basis.
D)   is associated with the formation of plaques and neurofibrillary tangles.
E)   may be associated with damage to the nucleus basalis.

Question 5

Intramural ganglia in the digestive, urinary, and reproductive organs are innervated by the ________ nerves.

Accepted Answer

A)   spinal
B)   splanchnic
C)   chain
D)   pelvic
E)   collateral

Question 6

Drugs known as beta-blockers may be useful for treating

Accepted Answer

A)   constipation.
B)   diarrhea.
C)   excessive salivation.
D)   excessive heart rate.
E)   prostate disorders.

Question 7

Sympathetic nerves contain postganglionic fibers that innervate organs in which cavity?

Accepted Answer

A)   thoracic
B)   pelvic
C)   abdominal
D)   cranial
E)   abdominopelvic

Question 8

Avisceral motor neuron whose cell body is within the CNS is called a(n) ________ neuron.

Accepted Answer

A)   upper motor
B)   lower motor
C)   preganglionic
D)   postganglionic
E)   somatomotor

Question 9

Sympathomimetic drugs might be used to

Accepted Answer

A)   decrease heart rate.
B)   decrease blood pressure.
C)   dilate airways.
D)   increase gastric motility.
E)   reduce blood sugar levels.

Question 10

The adrenal medullae secrete

Accepted Answer

A)   medullin.
B)   epinephrine.
C)   norepinephrine.
D)   renin.
E)   both epinephrine and norepinephrine.

Question 11

Sympathetic preganglionic fibers are ________ and have ________ axons.

Accepted Answer

A)   short; myelinated
B)   short; unmyelinated
C)   long; myelinated
D)   long; unmyelinated
E)   intermediate; small

Question 12

Figure 16-1 ANS Pathway
 
Use Figure 16-1 to answer the following questions:
-Identify the structure labeled "6."

Accepted Answer

A)   somatic motor neuron
B)   preganglionic neuron
C)   sensory neuron
D)   ganglionic neuron
E)   astrocyte

Question 13

Long-term memories that are with you for a lifetime are called ________ memories.

Accepted Answer

A)   tertiary
B)   reflexive
C)   consolidated
D)   multilobar
E)   secondary

Question 14

Which of the following is essential for memory consolidation?

Accepted Answer

A)   occipital lobe
B)   basal nuclei
C)   hippocampus
D)   insula
E)   prefrontal lobe

Question 15

Autonomic tone is an important aspect of ANS function because it

Accepted Answer

A)   allows ANS neurons to be silent under normal conditions.
B)   allows ANS neurons to increase activity on demand but not decrease their activity.
C)   allows ANS neurons to decrease their activity on demand but not increase their activity.
D)   allows ANS neurons to increase or decrease their activity, providing a range of control options.
E)   provides for a narrow range of control options that keeps target tissues constantly active.

Question 16

Mary accidentally ate poisonous mushrooms that contain muscarine. You would expect to observe all of thefollowing symptoms except

Accepted Answer

A)   diarrhea.
B)   salivation.
C)   very fast heart rate.
D)   sweating.
E)   low blood pressure.

Question 17

Preganglionic fibers of parasympathetic neurons are present in all of the following cranial nerves except

Accepted Answer

A)   III.
B)   VII.
C)   IX.
D)   X.
E)   XII.

Question 18

Most sympathetic effector junctions release norepinephrine but a significant number release acetylcholine instead. Which of these is an example of an organ of the cholinergic type?

Accepted Answer

A)   the heart
B)   a blood vessel in the skin
C)   a sweat gland
D)   the liver
E)   the salivary glands

Question 19

A pedestrian narrowly avoids being hit by an oncoming car. He notices that it takes a little while for hisheart rate and respiratory rate to return to normal. This is likely because

Accepted Answer

A)   the parasympathetic nervous system has become activated.
B)   sympathetic activation of the adrenal medulla has released epinephrine and norepinephrine into the bloodstream.
C)   the splanchnic nerves have become activated.
D)   somatic motor neurons have increased the heart and respiratory rate.
E)   the corticospinal pathway has become activated.

Question 20

Descending branches of the vagus and splanchnic nerves travel through the ________ plexus.

Accepted Answer

A)   cardiac
B)   pulmonary
C)   hypogastric
D)   esophageal
E)   celiac

Exam 16: The Autonomic Nervous System and Higher-Order Functions

Most sympathetic effector junctions release norepinephrine but a significant number release acetylcholine instead. Which of these is an example of an organ of the cholinergic type?

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Sympathomimetic drugs might be used to

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Drugs known as beta-blockers may be useful for treating

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Parasympathetic stimulation

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Long-term memories that are with you for a lifetime are called ________ memories.

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Which of the following is essential for memory consolidation?

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Parasympathetic functions include all of the following, except

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The adrenal medullae secrete

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Sympathetic preganglionic fibers are ________ and have ________ axons.

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A pedestrian narrowly avoids being hit by an oncoming car. He notices that it takes a little while for hisheart rate and respiratory rate to return to normal. This is likely because

Correct AnswerverifiedShow Answer

Intramural ganglia in the digestive, urinary, and reproductive organs are innervated by the ________ nerves.

Correct AnswerverifiedShow Answer

Autonomic tone is an important aspect of ANS function because it

Correct AnswerverifiedShow Answer

Sympathetic nerves contain postganglionic fibers that innervate organs in which cavity?

Correct AnswerverifiedShow Answer

Most vital organs receive ________ innervation. That is, they receive input from both sympathetic and parasympathetic divisions.

Correct AnswerverifiedShow Answer

Mary accidentally ate poisonous mushrooms that contain muscarine. You would expect to observe all of thefollowing symptoms except

Correct AnswerverifiedShow Answer

Descending branches of the vagus and splanchnic nerves travel through the ________ plexus.

Correct AnswerverifiedShow Answer

Preganglionic fibers of parasympathetic neurons are present in all of the following cranial nerves except

Correct AnswerverifiedShow Answer

Figure 16-1 ANS Pathway Use Figure 16-1 to answer the following questions: -Identify the structure labeled "6."

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Alzheimer's disease is characterized by all of the following except that it

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Avisceral motor neuron whose cell body is within the CNS is called a(n) ________ neuron.

Correct AnswerverifiedShow Answer

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Sympathetic preganglionic fibers are and have axons.

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