Question 1

Which of the following statements is true regarding parasympathetic tone?

Accepted Answer

A)   It holds the resting heart rate below its intrinsic rate.
B)   It accelerates the resting heart rate above its intrinsic rate.
C)   It might increase or decrease heart rate depending on the situation.
D)   It affects heart rate only after myocardial infarction.
E)   It does not affect heart rate.F) A) and B)
G) C) and D)

Question 2

All sympathetic postganglionic adrenergic fibers secrete adrenaline.

Accepted Answer

A) True 
 B)False

Question 3

Acetylcholine (ACh)always has an excitatory effect.

Accepted Answer

A) True 
 B)False

Question 4

The enzyme that breaks down norepinephrine (NE) is called __________.

Accepted Answer

A)   noradrenalinase
B)   adenosine
C)   monoamine oxidase (MAO) 
D)   norepinephrinase
E)   norepinephrine hydroxylaseF) A) and C)
G) B) and C)

Question 5

The background rate of sympathetic and parasympathetic activity is called ___________.

Accepted Answer

A)   "fight-or-flight" activity
B)   visceral motor activity
C)   autonomic reflex arc activity
D)   visceral tone
E)   autonomic toneF) A) and B)
G) B) and D)

Question 6

Which of the following is associated with the "flight-or-fight" reaction?

Accepted Answer

A)   Pupillary constriction
B)   Glycogen synthesis
C)   Increased gastric motility
D)   Reduced urinary output
E)   Reduced heart rateF) All of the above
G) B) and E)

Question 7

The neurotransmitter(s) associated with autonomic ganglia is(are) __________.

Accepted Answer

A)   norepinephrine (N
E)  
B)   acetylcholine (ACh) and norepinephrine (N
E)  
C)   acetylcholine (ACh) 
D)   dopamine
E)   dopamine and norepinephrine (N
E)  F) A) and E)
G) B) and E)

Question 8

The parasympathetic division stimulates digestion.

Accepted Answer

A) True 
 B)False

Question 9

The autonomic effect on a target cell depends only on the neurotransmitter reaching that target cell.

Accepted Answer

A) True 
 B)False

Question 10

All preganglionic fibers of the ANS pass through the sympathetic chain of ganglia,synapsing at least once there.

Accepted Answer

A) True 
 B)False

Question 11

__________ is an example of the cooperative effect between the two autonomic nervous system divisions.

Accepted Answer

A)   Orgasm
B)   Bronchodilation
C)   Gastrointestinal secretion
D)   Heart rate
E)   Vasomotor toneF) C) and E)
G) A) and B)

Question 12

Which of the following is true regarding the autonomic nervous system?

Accepted Answer

A)   It controls skeletal muscle contraction.
B)   It has no ganglia along its nerves.
C)   It uses the neurotransmitter acetylcholine exclusively.
D)   Its denervation would cause hypersensitivity.
E)   It usually controls conscious actions.F) D) and E)
G) B) and D)

Question 13

Sympathetic nerve fibers are not associated with situations involving __________.

Accepted Answer

A)   anger
B)   digestion
C)   exercise
D)   stress
E)   arousalF) C) and E)
G) A) and E)

Question 14

The parasympathetic division arises from the __________ regions of the spinal cord.

Accepted Answer

A)   brain,thoracic,and lumbar
B)   brain,sacral,and coccygeal
C)   brain,lumbar,sacral,and coccygeal
D)   sacral and lumbar
E)   brain and sacralF) A) and B)
G) A) and C)

Question 15

Sympathetic effects tend to last __________ than parasympathetic effects.One reason is that __________.

Accepted Answer

A)   shorter;acetylcholine can diffuse into the bloodstream without being broken down
B)   longer;norepinephrine can diffuse into the bloodstream without being broken down
C)   about the same;the two divisions use the same neurotransmitters
D)   shorter;acetylcholine is broken down by acetylcholinesterase (ACh
E)  
E)   longer;acetylcholine is broken down by monoamine oxidase (MAO) F) C) and E)
G) D) and E)

Question 16

The solar plexus is used as a name for the __________.

Accepted Answer

A)   spinal nerve route
B)   carotid plexus
C)   the celiac and mesenteric ganglia
D)   splanchic nerves
E)   sympathetic nerve routeF) A) and B)
G) A) and C)

Question 17

Sympathetic fibers arise only from the __________ region(s) of the spinal cord.

Accepted Answer

A)   cervical,thoracic,and lumbar
B)   thoracic and lumbar
C)   thoracic
D)   cervical
E)   lumbarF) B) and E)
G) A) and C)

Question 18

Preganglionic fibers of the autonomic efferent pathway are _________ and secrete __________.

Accepted Answer

A)   myelinated;norepinephrine (N
E)  
B)   myelinated;acetylcholine (ACh) 
C)   myelinated;acetylcholine (ACh) and norepinephrine(N
E)  
D)   unmyelinated;acetylcholine (ACh) 
E)   unmyelinated;norepinephrine(N
E)  F) A) and B)
G) A) and D)

Question 19

Most preganglionic fibers in the sympathetic nervous system synapse with __________.

Accepted Answer

A)   no neurons
B)   somatic neurons
C)   parasympathetic neurons
D)   10-20 postganglionic neurons
E)   effectors directlyF) A) and B)
G) A) and E)

Question 20

Which of the following is not a characteristic of the parasympathetic division of the ANS?

Accepted Answer

A)   Its effects are local.
B)   The terminal ganglia are very close to or within their target organs.
C)   It originates in the craniosacral regions of the CNS.
D)   It has short preganglionic fibers.
E)   It has short postganglionic fibers.F) C) and D)
G) A) and B)

Exam 15: The Autonomic Nervous System and Visceral Reflexes

Which of the following is true regarding the autonomic nervous system?

Correct AnswerverifiedShow Answer

The neurotransmitter(s) associated with autonomic ganglia is(are) __________.

Correct AnswerverifiedShow Answer

Which of the following is associated with the "flight-or-fight" reaction?

Correct AnswerverifiedShow Answer

Acetylcholine (ACh)always has an excitatory effect.

Correct AnswerverifiedShow Answer

The parasympathetic division stimulates digestion.

Correct AnswerverifiedShow Answer

The solar plexus is used as a name for the __________.

Correct AnswerverifiedShow Answer

Sympathetic fibers arise only from the __________ region(s) of the spinal cord.

Correct AnswerverifiedShow Answer

All preganglionic fibers of the ANS pass through the sympathetic chain of ganglia,synapsing at least once there.

Correct AnswerverifiedShow Answer

Which of the following statements is true regarding parasympathetic tone?

Correct AnswerverifiedShow Answer

The autonomic effect on a target cell depends only on the neurotransmitter reaching that target cell.

Correct AnswerverifiedShow Answer

Sympathetic nerve fibers are not associated with situations involving __________.

Correct AnswerverifiedShow Answer

Preganglionic fibers of the autonomic efferent pathway are _________ and secrete __________.

Correct AnswerverifiedShow Answer

The parasympathetic division arises from the __________ regions of the spinal cord.

Correct AnswerverifiedShow Answer

All sympathetic postganglionic adrenergic fibers secrete adrenaline.

Correct AnswerverifiedShow Answer

Which of the following is not a characteristic of the parasympathetic division of the ANS?

Correct AnswerverifiedShow Answer

Most preganglionic fibers in the sympathetic nervous system synapse with __________.

Correct AnswerverifiedShow Answer

The background rate of sympathetic and parasympathetic activity is called ___________.

Correct AnswerverifiedShow Answer

Sympathetic effects tend to last __________ than parasympathetic effects.One reason is that __________.

Correct AnswerverifiedShow Answer

The enzyme that breaks down norepinephrine (NE) is called __________.

Correct AnswerverifiedShow Answer

__________ is an example of the cooperative effect between the two autonomic nervous system divisions.

Correct AnswerverifiedShow Answer

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Preganglionic fibers of the autonomic efferent pathway are _ and secrete __.

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Sympathetic effects tend to last than parasympathetic effects.One reason is that .

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