Question 1

A drug known as a beta -blocker should primarily affect:

Accepted Answer

A)   dilation of the pupils.
B)   sweating.
C)   bronchodilation.
D)   heart rate.E) A) and B)
F) C) and D)

Question 2

If a drug is administered to block the heart's adrenergic receptors, how is heart rate affected during exercise?

Accepted Answer

A)   The drug has no effect on heart rate during exercise.
B)   Heart rate will increase in response to the drug.
C)   The heart will stop beating.
D)   Heart rate will be unable to increase in response to exercise.E) A) and B)
F) None of the above

Question 3

Where are autonomic ganglia located?

Accepted Answer

A)   peripheral nervous system (PNS) 
B)   spinal cord
C)   central nervous system (CNS) 
D)   brainE) A) and D)
F) A) and C)

Question 4

Which system works opposite to the sympathetic nervous system?

Accepted Answer

A)   parasympathetic nervous system
B)   somatic nervous system
C)   central nervous system
D)   sensory nervous systemE) A) and B)
F) A) and D)

Question 5

What receptor present on smooth muscle cells of blood vessels binds norepinephrine?

Accepted Answer

A)   a1 receptor
B)   a2 receptor
C)   fi1 receptor
D)   fi2 receptorE) A) and B)
F) None of the above

Question 6

Maddie planned to go for a swim after dinner. But, after a large meal, she decided to rest rather than swim. What neurotransmitter promotes rest by binding muscarinic receptors after her meal?

Accepted Answer

A)   adrenalin
B)   norepinephrine
C)   acetylcholine
D)   epinephrineE) A) and C)
F) B) and C)

Question 7

During sympathetic nervous system activity, what is NOT an effect of norepinephrine?

Accepted Answer

A)   the pancreas releases a hormone called glucagon
B)   lipids are broken down from adipocytes
C)   glucose is broken down from glycogen
D)   blood glucose levels decreaseE) None of the above
F) B) and D) D

Question 8

The axons of parasympathetic postganglionic neurons are:

Accepted Answer

A)   situated within terminal ganglia.
B)   long.
C)   short.
D)   found close to the spinal cord.E) B) and C)
F) C) and D)

Question 9

Determine the effects of norepinephrine when its binds receptors on blood vessels serving smooth, skeletal, and cardiac muscle cells.

Accepted Answer

Vasoconstriction results when norepineph...

Question 10

A drug that inhibits the release of norepinephrine will have the greatest affect on:

Accepted Answer

A)   skeletal muscle cells.
B)   preganglionic neurons.
C)   somatic motor neurons.
D)   autonomic target cells.E) A) and D)
F) A) and C)

Question 11

The adrenal medulla serve to supplement the:

Accepted Answer

A)   sympathetic nervous system.
B)   parasympathetic nervous system.
C)   both the sympathetic and parasympathetic nervous systems.
D)   somatic nervous system.E) B) and D)
F) A) and D)

Question 12

Which nervous system usually maintains a heart rate of 72 beats per minute?

Accepted Answer

A)   parasympathetic nervous system
B)   central nervous system
C)   sympathetic nervous system
D)   somatic nervous systemE) B) and D)
F) All of the above A

Question 13

What two systems are interfaced by the adrenal medulla?

Accepted Answer

A)   parasympathetic nervous system and endocrine system
B)   sympathetic nervous system and endocrine system
C)   somatic nervous system and autonomic nervous system
D)   parasympathetic nervous system and sympathetic nervous systemE) C) and D)
F) All of the above

Question 14

Where does the cell body of the preganglionic neuron originate?

Accepted Answer

A)   peripheral nervous system (PNS) 
B)   target cell
C)   central nervous system (CNS) 
D)   postganglionic neuronE) All of the above
F) A) and C)

Question 15

The somatic motor division consists of somatic motor neurons that innervate cardiac, smooth, and skeletal muscle cells.

Accepted Answer

A) True 
 B)False

Question 16

Both preganglionic and postganglionic parasympathetic neurons release acetylcholine at their synapses.

Accepted Answer

A) True 
 B)False

Question 17

The parasympathetic nervous system prepares the eye for:

Accepted Answer

A)   distance vision.
B)   near vision.
C)   age -related deterioration.
D)   changing light levels.E) A) and B)
F) A) and C)

Question 18

Gene's parachute did not open when he jumped out of the airplane. He injured his back in the thoracic and lumbar regions, damaging the autonomic ganglia found close to his spinal cord. What neurons did he likely damage?

Accepted Answer

A)   somatic motor neurons
B)   sympathetic preganglionic neurons
C)   parasympathetic preganglionic neurons
D)   sympathetic postganglionic neuronsE) A) and C)
F) A) and D) B

Question 19

Due to an accident, Lori's sacral nerves are severed. What do you expect to be affected by this injury?

Accepted Answer

A)   heart and lungs
B)   blood pressure and heart rate
C)   production of saliva
D)   urinary bladder and the last portion of the large intestineE) All of the above
F) None of the above

Question 20

Briefly explain the role of the sympathetic nervous system in maintaining homeostasis.

Accepted Answer

The sympathetic nervous system, or "figh...

Exam 14: The Autonomic Nervous System Homeostasis

A drug known as a beta -blocker should primarily affect:

Correct AnswerverifiedShow Answer

If a drug is administered to block the heart's adrenergic receptors, how is heart rate affected during exercise?

Correct AnswerverifiedShow Answer

Where are autonomic ganglia located?

Correct AnswerverifiedShow Answer

Which system works opposite to the sympathetic nervous system?

Correct AnswerverifiedShow Answer

What receptor present on smooth muscle cells of blood vessels binds norepinephrine?

Correct AnswerverifiedShow Answer

Maddie planned to go for a swim after dinner. But, after a large meal, she decided to rest rather than swim. What neurotransmitter promotes rest by binding muscarinic receptors after her meal?

Correct AnswerverifiedShow Answer

During sympathetic nervous system activity, what is NOT an effect of norepinephrine?

Correct AnswerverifiedD

The axons of parasympathetic postganglionic neurons are:

Correct AnswerverifiedShow Answer

Determine the effects of norepinephrine when its binds receptors on blood vessels serving smooth, skeletal, and cardiac muscle cells.

Correct AnswerverifiedVasoconstriction results when norepineph...View AnswerShow Answer

A drug that inhibits the release of norepinephrine will have the greatest affect on:

Correct AnswerverifiedShow Answer

The adrenal medulla serve to supplement the:

Correct AnswerverifiedShow Answer

Which nervous system usually maintains a heart rate of 72 beats per minute?

Correct AnswerverifiedA

What two systems are interfaced by the adrenal medulla?

Correct AnswerverifiedShow Answer

Where does the cell body of the preganglionic neuron originate?

Correct AnswerverifiedShow Answer

The somatic motor division consists of somatic motor neurons that innervate cardiac, smooth, and skeletal muscle cells.

Correct AnswerverifiedShow Answer

Both preganglionic and postganglionic parasympathetic neurons release acetylcholine at their synapses.

Correct AnswerverifiedShow Answer

The parasympathetic nervous system prepares the eye for:

Correct AnswerverifiedShow Answer

Gene's parachute did not open when he jumped out of the airplane. He injured his back in the thoracic and lumbar regions, damaging the autonomic ganglia found close to his spinal cord. What neurons did he likely damage?

Correct AnswerverifiedB

Due to an accident, Lori's sacral nerves are severed. What do you expect to be affected by this injury?

Correct AnswerverifiedShow Answer

Briefly explain the role of the sympathetic nervous system in maintaining homeostasis.

Correct AnswerverifiedThe sympathetic nervous system, or "figh...View AnswerShow Answer

A drug known as a beta ^-blocker should primarily affect:

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D

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Vasoconstriction results when norepineph...
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A drug that inhibits the release of norepinephrine will have the ^greatestaffect on:

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A

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B

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The sympathetic nervous system, or "figh...
View Answer