Question 1

The splanchnic nerve is made up of preganglionic sympathetic fibers.

Accepted Answer

A) True 
 B)False

Question 2

The "fight-or-flight" reaction is a normal response in times of stress.

Accepted Answer

A) True 
 B)False

Question 3

Nicotinic receptors are located on the dendrites of all preganglionic neurons of both the parasympathetic and sympathetic divisions.

Accepted Answer

A) True 
 B)False

Question 4

Sympathetic responses generally have widespread effects on the body because:

Accepted Answer

A)   they reach visceral effectors faster than parasympathetic impulses.
B)   myoneural junctions contain a substance that inactivates acetylcholine.
C)   preganglionic fibers are short and postganglionic fibers are long.
D)   preganglionic fibers synapse with several postsynaptic fibers.E) A) and D)
F) B) and C)

Question 5

Propranolol is an example of a:

Accepted Answer

A)   beta blocker.
B)   drug used to treat irregular heartbeats.
C)   drug used to treat hypertension.
D)   All of the above are correct.E) B) and D)
F) A) and C)

Question 6

The parasympathetic division is the dominant controller of the body at rest.

Accepted Answer

A) True 
 B)False

Question 7

The autonomic nervous system regulates subconscious body functions.

Accepted Answer

A) True 
 B)False

Question 8

"Fight-or-flight" physiological changes include all of the following except:

Accepted Answer

A)   increased conversion of glycogen into glucose.
B)   constriction of respiratory airways.
C)   increased sweating.
D)   dilation of blood vessels in skeletal muscles.E) All of the above
F) A) and C)

Question 9

Blood vessels in both digestive organs and skeletal muscles are dilated by sympathetic stimulation.

Accepted Answer

A) True 
 B)False

Question 10

Explain physiologically how a beta blocker affects heart muscle activity.

Accepted Answer

Beta blockers work by blocking the actio...

Question 11

Biofeedback involves willful control of specific effectors normally controlled only autonomically.

Accepted Answer

A) True 
 B)False

Question 12

Match each term with its description or definition.
-structure that lies on either side of the spinal cord and through which preganglionic sympathetic neurons enter

Accepted Answer

A)  Sympathetic nervous system
B)  Parasympathetic nervous system
C)  Alpha receptor
D)  Nicotinic receptor
E)  Sympathetic trunkF) Splanchnic nerveG) "Fight or flight"H) "Rest and repair"I) AcetylcholineJ) NorepinephrineK) D) and E)
L) A) and I)

Question 13

Once inside the sympathetic chain ganglion,the preganglionic fiber will always synapse with a sympathetic postganglionic neuron.

Accepted Answer

A) True 
 B)False

Question 14

The preganglionic neurons of both the sympathetic and the parasympathetic divisions are cholinergic.

Accepted Answer

A) True 
 B)False

Question 15

The gray rami of the spinal nerve are sympathetic fibers and the white rami are parasympathetic fibers.

Accepted Answer

A) True 
 B)False

Question 16

Match each term with its description or definition.
-one type of receptor stimulated by acetylcholine

Accepted Answer

A)  Sympathetic nervous system
B)  Parasympathetic nervous system
C)  Alpha receptor
D)  Nicotinic receptor
E)  Sympathetic trunkF) Splanchnic nerveG) "Fight or flight"H) "Rest and repair"I) AcetylcholineJ) NorepinephrineK) B) and G)
L) A) and J)

Question 17

Both the parasympathetic and the sympathetic divisions continually conduct impulses to visceral effectors.

Accepted Answer

A) True 
 B)False

Question 18

The autonomic nervous system functions chiefly in the:

Accepted Answer

A)   coordination of muscular activity.
B)   innervation of smooth muscle in the viscera.
C)   reception of sensory impulses.
D)   arousal of alerting mechanism.E) A) and C)
F) B) and C)

Question 19

Sensory neurons can operate in autonomic reflex arcs.

Accepted Answer

A) True 
 B)False

Question 20

Acetylcholine affects visceral effectors by first binding to alpha receptors.

Accepted Answer

A) True 
 B)False

Exam 16: Autonomic Nervous System

The parasympathetic division is the dominant controller of the body at rest.

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The preganglionic neurons of both the sympathetic and the parasympathetic divisions are cholinergic.

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Match each term with its description or definition. -structure that lies on either side of the spinal cord and through which preganglionic sympathetic neurons enter

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The autonomic nervous system regulates subconscious body functions.

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Once inside the sympathetic chain ganglion,the preganglionic fiber will always synapse with a sympathetic postganglionic neuron.

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Both the parasympathetic and the sympathetic divisions continually conduct impulses to visceral effectors.

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Acetylcholine affects visceral effectors by first binding to alpha receptors.

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Explain physiologically how a beta blocker affects heart muscle activity.

Correct AnswerAnswered by ExamLex AIBeta blockers work by blocking the actio...View AnswerShow Answer

Propranolol is an example of a:

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"Fight-or-flight" physiological changes include all of the following except:

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The splanchnic nerve is made up of preganglionic sympathetic fibers.

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Nicotinic receptors are located on the dendrites of all preganglionic neurons of both the parasympathetic and sympathetic divisions.

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Sensory neurons can operate in autonomic reflex arcs.

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Sympathetic responses generally have widespread effects on the body because:

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Blood vessels in both digestive organs and skeletal muscles are dilated by sympathetic stimulation.

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Match each term with its description or definition. -one type of receptor stimulated by acetylcholine

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The gray rami of the spinal nerve are sympathetic fibers and the white rami are parasympathetic fibers.

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The "fight-or-flight" reaction is a normal response in times of stress.

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The autonomic nervous system functions chiefly in the:

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Biofeedback involves willful control of specific effectors normally controlled only autonomically.

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Beta blockers work by blocking the actio...
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