Question 1

The effect of autonomic fibers on target cells is , and/whereas the effect of somatic fibers is .

Accepted Answer

A)  always excitatory; always excitatory too
B)  excitatory or inhibitory; always excitatory
C)  excitatory or inhibitory; excitatory or inhibitory
D)  always inhibitory; excitatory or inhibitory
E)  always inhibitory; always excitatoryF) A) and D)
G) C) and D)

Question 2

The parasympathetic division stimulates digestion.

Accepted Answer

A) True 
 B)False

Question 3

Muscarinic receptors bind

Accepted Answer

A)  epinephrine.
B)  norepinephrine.
C)  monoamine oxidase (MAO) .
D)  acetylcholinesterase.
E)  acetylcholine.F) None of the above
G) B) and E)

Question 4

Which of the following is more effective in producing bronchodilation?

Accepted Answer

A)  acetylcholine
B)  nicotine
C)  muscarine
D)  norepinephrine
E)  thyroxineF) A) and E)
G) B) and E)

Question 5

Binding of norepinephrine (NE) to an alpha-adrenergic receptor is usually excitatory, and binding to a
beta-adrenergic receptor is usually inhibitory.

Accepted Answer

A) True 
 B)False

Question 6

Autonomic nervous system fibers are involved in all of the following except

Accepted Answer

A)  changing the diameter of the pupil.
B)  adjusting heart rate and force.
C)  altering salivary mucus secretion.
D)  regulating gastrointestinal motility.
E)  maintaining tonicity of the muscles of the neck.F) A) and B)
G) C) and D)

Question 7

A possible explanation for the effect of caffeine is that it blocks the receptor for a neuromodulator in the brain called , which inhibits ACh release by cholinergic neurons.

Accepted Answer

A)  glycine
B)  dopamine
C)  serotonin
D)  melatonin
E)  adenosineF) A) and B)
G) A) and C)

Question 8

Most sympathetic postganglionic adrenergic fibers secrete adrenaline.

Accepted Answer

A) True 
 B)False

Question 9

The parasympathetic division arises from the region(s)  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 E)
G) A) and B) E

Question 10

The solar plexus is used as a name for

Accepted Answer

A)  the spinal nerve route.
B)  the carotid plexus.
C)  either the celiac and mesenteric ganglia or with celiac ganglia only.
D)  the splanchic nerves.
E)  the sympathetic nerve route.F) B) and D)
G) B) and E)

Question 11

Most preganglionic fibers in the sympathetic nervous system synapse with 10 to 20 postganglionic neurons.This results in

Accepted Answer

A)  sympathetic fibers arising in the spinal cord all along its length.
B)  the sympathetic nervous system having a relative widespread effect.
C)  sympathetic spinal nerves being smaller.
D)  sympathetic ganglia being close to the spinal cord.
E)  spinal nerves being smaller.F) C) and E)
G) A) and E) B

Question 12

White rami carry neurons, while gray rami carry neurons.

Accepted Answer

A)  myelinated postganglionic; unmyelinated preganglionic
B)  unmyelinated postganglionic; myelinated preganglionic
C)  myelinated preganglionic; unmyelinated postganglionic
D)  unmyelinated preganglionic; myelinated postganglionic
E)  myelinated preganglionic; myelinated postganglionicF) B) and D)
G) A) and D)

Question 13

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 C)
G) A) and B)

Question 14

This figure shows a division of the autonomic nervous system.The label represents the Vagus Nerve (CN X) .

Accepted Answer

A)  4
B)  3
C)  2
D)  1
E)  5F) All of the above
G) A) and C)

Question 15

is the background rate of sympathetic and parasympathetic activity.

Accepted Answer

A)  "Fight or flight" activity
B)  Visceral motor activity
C)  Autonomic reflex arc activity
D)  Visceral tone
E)  Autonomic tone.F) All of the above
G) A) and D) E

Question 16

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

Accepted Answer

A)  acetylcholine (ACh) .
B)  norepinephrine (N
E)  .
C)  adrenaline.
D)  alpha adrenaline.
E)  nicotine.F) C) and D)
G) C) and E)

Question 17

The adrenal medulla is a modified sympathetic ganglion.

Accepted Answer

A) True 
 B)False

Question 18

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 gland.F) A) and D)
G) None of the above

Question 19

This figure shows the neural pathway through the autonomic nervous system.What does structure "3" represent?

Accepted Answer

A)  preganglionic sympathetic fiber
B)  postganglionic sympathetic fiber
C)  somatic motor fiber
D)  preganglionic parasympathetic fiber
E)  postganglionic parasympathetic fiberF) A) and E)
G) A) and D)

Question 20

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) C) and D)
G) A) and C)

Exam 15: The Autonomic Nervous System and Visceral Reflexes

The effect of autonomic fibers on target cells is , and/whereas the effect of somatic fibers is .

Correct AnswerverifiedShow Answer

The parasympathetic division stimulates digestion.

Correct AnswerverifiedShow Answer

Muscarinic receptors bind

Correct AnswerverifiedShow Answer

Which of the following is more effective in producing bronchodilation?

Correct AnswerverifiedShow Answer

Binding of norepinephrine (NE) to an alpha-adrenergic receptor is usually excitatory, and binding to a beta-adrenergic receptor is usually inhibitory.

Correct AnswerverifiedShow Answer

Autonomic nervous system fibers are involved in all of the following except

Correct AnswerverifiedShow Answer

A possible explanation for the effect of caffeine is that it blocks the receptor for a neuromodulator in the brain called , which inhibits ACh release by cholinergic neurons.

Correct AnswerverifiedShow Answer

Most sympathetic postganglionic adrenergic fibers secrete adrenaline.

Correct AnswerverifiedShow Answer

The parasympathetic division arises from the region(s) of the spinal cord.

Correct AnswerverifiedE

The solar plexus is used as a name for

Correct AnswerverifiedShow Answer

Most preganglionic fibers in the sympathetic nervous system synapse with 10 to 20 postganglionic neurons.This results in

Correct AnswerverifiedB

White rami carry neurons, while gray rami carry neurons.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

This figure shows a division of the autonomic nervous system.The label represents the Vagus Nerve (CN X) .

Correct AnswerverifiedShow Answer

is the background rate of sympathetic and parasympathetic activity.

Correct AnswerverifiedE

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

Correct AnswerverifiedShow Answer

The adrenal medulla is a modified sympathetic ganglion.

Correct AnswerverifiedShow Answer

The autonomic nervous system controls all of the following except the

Correct AnswerverifiedShow Answer

This figure shows the neural pathway through the autonomic nervous system.What does structure "3" represent?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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E

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B

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E

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