Question 1

The autonomic nervous system is composed of ganglia in the central nervous system and ganglia in the periphery.

Accepted Answer

A) True 
 B)False

Question 2

Preganglionic fibers run from the _________ to the __________.

Accepted Answer

A)   posterior root ganglia;gray matter
B)   posterior root ganglia;autonomic ganglia
C)   gray matter;posterior root ganglia
D)   gray matter;autonomic ganglia
E)   autonomic ganglia;visceral effectorsF) C) and E)
G) B) and D)

Question 3

Which one of the following is made up of primarily adrenergic fibers?

Accepted Answer

A)   Preganglionic neurons of the sympathetic division
B)   Postganglionic neurons of the sympathetic division
C)   Postganglionic neurons of the parasympathetic division
D)   All motor fibers of the somatic motor system
E)   Preganglionic neurons of parasympathetic divisionF) All of the above
G) A) and C)

Question 4

Which of the following is not under dual control of the ANS?

Accepted Answer

A)   Pupil diameter
B)   Heart rate
C)   Salivary gland activity
D)   Adrenal medulla activity
E)   Gastrointestinal motilityF) C) and D)
G) A) and B)

Question 5

The binding of __________ to a nicotinic receptor of a muscle fiber will __________ it.

Accepted Answer

A)   acetylcholine;excite
B)   norepinephrine;excite
C)   monoamine oxidase;inhibit
D)   acetylcholine;inhibit
E)   acetylcholinesterase;exciteF) A) and D)
G) D) and E)

Question 6

Vasomotor tone is controlled by using the sympathetic division for vasodilation and the parasympathetic division for vasoconstriction.

Accepted Answer

A) True 
 B)False

Question 7

Atropine is sometimes used to dilate the pupil for an eye examination.Which receptor would atropine block?

Accepted Answer

A)   Alpha 1 adrenergic receptor
B)   Nicotinic receptor
C)   Muscarinic receptor
D)   Alpha 2 adrenergic receptor
E)   Beta receptorF) A) and B)
G) A) and C)

Question 8

__________ nerve(s) pass(es) throughout sympathetic ganglia without synapsing.

Accepted Answer

A)   Facial
B)   Trigeminal
C)   Vagus
D)   Celiac
E)   SplanchnicF) A) and B)
G) A) and C)

Question 9

Sympathetic fibers do not release __________.

Accepted Answer

A)   acetylcholine
B)   nitric oxide (NO) 
C)   substance P
D)   neuropeptide Y
E)   norepinephrineF) C) and E)
G) B) and C)

Question 10

Antagonistic effects of the two divisions of the autonomic nervous system are exemplified in the control of __________.

Accepted Answer

A)   blood clotting
B)   blood flow to the skeletal muscles
C)   sweating
D)   hair erection
E)   gastrointestinal motilityF) C) and D)
G) None of the above

Question 11

Which of the following is not a feature of the sympathetic division of the ANS?

Accepted Answer

A)   It originates in the thoracolumbar region of the spinal cord.
B)   It has long postganglionic fibers.
C)   It has long preganglionic fibers.
D)   Its ganglia are adjacent to the spinal column.
E)   It has an extensive neural divergence and a relative widespread effect.F) C) and D)
G) B) and D)

Question 12

Most autonomic efferent pathways involve one neuron.

Accepted Answer

A) True 
 B)False

Question 13

Propranolol,a beta-blocker,is typically used to __________.

Accepted Answer

A)   increase heart rate
B)   decrease heart rate
C)   produce vasoconstriction of the coronary arteries
D)   produce vasodilation of blood vessels of skeletal muscle
E)   produce bronchodilationF) B) and D)
G) A) and B)

Question 14

The autonomic nervous system controls all of the following except the __________.

Accepted Answer

A)   adrenal gland
B)   smooth muscle in the walls of the aorta
C)   cardiac muscle in the right atrium
D)   skeletal muscle in the rectus abdominis
E)   parotid salivary glandF) B) and E)
G) B) and C)

Question 15

Which of the following structures is not associated with the autonomic nervous system?

Accepted Answer

A)   Preganglionic neuron
B)   Postganglionic neuron
C)   Splanchnic nerve
D)   Oculomotor nerve
E)   All of these are associated with the autonomic nervous system.F) B) and E)
G) C) and D)

Question 16

If a cell has α1 adrenergic receptors,it is sensitive to __________.

Accepted Answer

A)   acetylcholine (ACh) 
B)   norepinephrine (N
E)  
C)   muscarine
D)   alpha adrenaline
E)   nicotineF) A) and B)
G) A) and E)

Question 17

Drugs that are monoamine oxidase (MAO) inhibitors would most likely __________.

Accepted Answer

A)   activate the parasympathetic division and allow for normal digestive system activities
B)   block ACh receptors on skeletal muscle and cause flaccid paralysis
C)   stimulate β-2 receptors and cause an increase in heart rate and dilation of bronchioles
D)   decrease the amount of NE destroyed and may be used as an antidepressant
E)   inhibit uptake of dopamine and cause depressionF) C) and D)
G) D) and E)

Question 18

Which of the following is not a reason that somatic reflexes act faster than visceral reflexes?

Accepted Answer

A)   The effector pathway in the somatic reflex arc is myelinated.
B)   The effector pathway in the visceral reflex arc involves more neurons.
C)   The effector pathway in the visceral reflex arc involves more chemical synapses.
D)   Some of the neurons in the effector pathway in the visceral reflex arc are unmyelinated.
E)   The effector organs in the somatic reflex are closer to the spinal cord.F) B) and D)
G) A) and E)

Question 19

Under normal circumstances,both divisions of the autonomic nervous system are active simultaneously.

Accepted Answer

A) True 
 B)False

Question 20

The motor pathway of the autonomic nervous system usually involves __________ neurons.

Accepted Answer

A)   no
B)   one
C)   two
D)   three
E)   fourF) A) and B)
G) None of the above

Exam 15: The Autonomic Nervous System and Visceral Reflexes

Antagonistic effects of the two divisions of the autonomic nervous system are exemplified in the control of __________.

Correct AnswerverifiedShow Answer

The autonomic nervous system controls all of the following except the __________.

Correct AnswerverifiedShow Answer

Vasomotor tone is controlled by using the sympathetic division for vasodilation and the parasympathetic division for vasoconstriction.

Correct AnswerverifiedShow Answer

Which of the following structures is not associated with the autonomic nervous system?

Correct AnswerverifiedShow Answer

Which of the following is not a reason that somatic reflexes act faster than visceral reflexes?

Correct AnswerverifiedShow Answer

Which one of the following is made up of primarily adrenergic fibers?

Correct AnswerverifiedShow Answer

Propranolol,a beta-blocker,is typically used to __________.

Correct AnswerverifiedShow Answer

The motor pathway of the autonomic nervous system usually involves __________ neurons.

Correct AnswerverifiedShow Answer

Preganglionic fibers run from the _________ to the __________.

Correct AnswerverifiedShow Answer

__________ nerve(s) pass(es) throughout sympathetic ganglia without synapsing.

Correct AnswerverifiedShow Answer

The binding of __________ to a nicotinic receptor of a muscle fiber will __________ it.

Correct AnswerverifiedShow Answer

Under normal circumstances,both divisions of the autonomic nervous system are active simultaneously.

Correct AnswerverifiedShow Answer

Which of the following is not under dual control of the ANS?

Correct AnswerverifiedShow Answer

Most autonomic efferent pathways involve one neuron.

Correct AnswerverifiedShow Answer

Which of the following is not a feature of the sympathetic division of the ANS?

Correct AnswerverifiedShow Answer

Sympathetic fibers do not release __________.

Correct AnswerverifiedShow Answer

Drugs that are monoamine oxidase (MAO) inhibitors would most likely __________.

Correct AnswerverifiedShow Answer

The autonomic nervous system is composed of ganglia in the central nervous system and ganglia in the periphery.

Correct AnswerverifiedShow Answer

If a cell has α1 adrenergic receptors,it is sensitive to __________.

Correct AnswerverifiedShow Answer

Atropine is sometimes used to dilate the pupil for an eye examination.Which receptor would atropine block?

Correct AnswerverifiedShow Answer

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Preganglionic fibers run from the _ to the __.

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The binding of to a nicotinic receptor of a muscle fiber will it.

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If a cell has α₁ adrenergic receptors,it is sensitive to __________.

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