Question 1

Goose bumps would occur in response to

Accepted Answer

A)  an adrenergic antagonist.
B)  an adrenergic agonist.
C)  a cholinergic antagonist.
D)  a cholinergic agonist.E) A) and C)
F) A) and B)

Question 2

Which of the following organs is dually innervated?

Accepted Answer

A)  adrenal medulla
B)  arrector pili muscles in the skin
C)  urinary bladder
D)  most blood vesselsE) All of the above
F) A) and D)

Question 3

Heart rate is increased in response to sympathetic stimulation.

Accepted Answer

A) True 
 B)False

Question 4

Intracellular Ca2+ is elevated if norepinephrine binds to a(n) _____________ receptor.

Accepted Answer

A)  alpha-1 adrenergic
B)  alpha-2 adrenergic
C)  beta-1 adrenergic
D)  beta-2 adrenergicE) A) and D)
F) A) and B)

Question 5

_____________ is a muscarinic antagonist derived from the nightshade plant.

Accepted Answer

A)  Clonidine
B)  Nicotine
C)  Atropine
D)  BradykininE) A) and B)
F) A) and C)

Question 6

Dopamine,norepinephrine,and epinephrine are all molecules of the catecholamine family.

Accepted Answer

A) True 
 B)False

Question 7

The adrenal medulla is a modified sympathetic ganglion that secretes epinephrine when stimulated by sympathetic preganglionic neurons.

Accepted Answer

A) True 
 B)False

Question 8

Cocaine acts as a sympathomimetic drug because it blocks the reuptake of

Accepted Answer

A)  glucose.
B)  insulin.
C)  acetylcholine.
D)  norepinephrine.E) C) and D)
F) A) and D)

Question 9

Damage to an autonomic nerve makes the effector more sensitive to stimulation.

Accepted Answer

A) True 
 B)False

Question 10

The major regulatory center of the autonomic system is,according to many scientists,the ______________ since this brain region has functions,such as control of body temperature,that require appropriate activation of sympathetic and parasympathetic nerves.

Accepted Answer

A)  hypothalamus
B)  thalamus
C)  midbrain
D)  cerebrumE) All of the above
F) A) and D)

Question 11

The autonomic nervous system

Accepted Answer

A)  innervates skeletal muscle.
B)  is not usually under conscious control.
C)  is always excitatory.
D)  has a single nerve extending from the spinal corD.E) C) and D)
F) None of the above

Question 12

Postganglionic sympathetic neurons arise from the thoracic and lumbar regions of the spinal cord.

Accepted Answer

A) True 
 B)False

Question 13

___________ selectively stimulates a2 receptors in brain neurons thereby suppressing sympathoadrenal activation and lowering blood pressure.

Accepted Answer

A)  Clonidine
B)  Atropine
C)  Acetylcholine
D)  BradykininE) A) and B)
F) C) and D)

Question 14

Muscarinic antagonists stimulate _____________ pupillary diameter.

Accepted Answer

A)  increased
B)  decreased
C)  no change inD) A) and B)
E) A) and C)

Question 15

Postganglionic parasympathetic fibers are relatively long.

Accepted Answer

A) True 
 B)False

Question 16

Blocking  β\betaβ 2-adrenergic receptors prevents airway

Accepted Answer

A)  constriction.
B)  dilation. C) A) and B)
D) undefined

Question 17

Nitric oxide is made when Ca2+ influx into the axon terminal indirectly activates nitric oxide synthetase,which forms nitric oxide from the amino acid L-

Accepted Answer

A)  lysine.
B)  serine.
C)  arginine.
D)  asparagine.E) B) and C)
F) All of the above

Question 18

The paravertebral and collateral ganglia are associated with the _____________ division of the autonomic nervous system.

Accepted Answer

A)  sympathetic
B)  parasympathetic
C)  somatic
D)  sensoryE) A) and C)
F) C) and D)

Question 19

Sympathetic and parasympathetic neurons generally release different neurotransmitters to their smooth muscle effector cells,which is why these neurons often have antagonistic effects.

Accepted Answer

A) True 
 B)False

Question 20

Alpha2-adrenergic receptors on presynaptic axon terminals,when stimulated,cause

Accepted Answer

A)  increased release of norepinephrine.
B)  decreased release of epinephrine.
C)  increased release of epinephrine.
D)  decreased release of norepinephrine.E) C) and D)
F) B) and C)

Exam 9: The Autonomic Nervous System

Alpha2-adrenergic receptors on presynaptic axon terminals,when stimulated,cause

Correct AnswerverifiedShow Answer

The major regulatory center of the autonomic system is,according to many scientists,the ______________ since this brain region has functions,such as control of body temperature,that require appropriate activation of sympathetic and parasympathetic nerves.

Correct AnswerverifiedShow Answer

Blocking β\betaβ 2-adrenergic receptors prevents airway

Correct AnswerverifiedShow Answer

Dopamine,norepinephrine,and epinephrine are all molecules of the catecholamine family.

Correct AnswerverifiedShow Answer

Intracellular Ca2+ is elevated if norepinephrine binds to a(n) _____________ receptor.

Correct AnswerverifiedShow Answer

Postganglionic sympathetic neurons arise from the thoracic and lumbar regions of the spinal cord.

Correct AnswerverifiedShow Answer

_____________ is a muscarinic antagonist derived from the nightshade plant.

Correct AnswerverifiedShow Answer

Goose bumps would occur in response to

Correct AnswerverifiedShow Answer

The paravertebral and collateral ganglia are associated with the _____________ division of the autonomic nervous system.

Correct AnswerverifiedShow Answer

Cocaine acts as a sympathomimetic drug because it blocks the reuptake of

Correct AnswerverifiedShow Answer

Which of the following organs is dually innervated?

Correct AnswerverifiedShow Answer

The adrenal medulla is a modified sympathetic ganglion that secretes epinephrine when stimulated by sympathetic preganglionic neurons.

Correct AnswerverifiedShow Answer

___________ selectively stimulates a2 receptors in brain neurons thereby suppressing sympathoadrenal activation and lowering blood pressure.

Correct AnswerverifiedShow Answer

The autonomic nervous system

Correct AnswerverifiedShow Answer

Sympathetic and parasympathetic neurons generally release different neurotransmitters to their smooth muscle effector cells,which is why these neurons often have antagonistic effects.

Correct AnswerverifiedShow Answer

Heart rate is increased in response to sympathetic stimulation.

Correct AnswerverifiedShow Answer

Nitric oxide is made when Ca2+ influx into the axon terminal indirectly activates nitric oxide synthetase,which forms nitric oxide from the amino acid L-

Correct AnswerverifiedShow Answer

Postganglionic parasympathetic fibers are relatively long.

Correct AnswerverifiedShow Answer

Damage to an autonomic nerve makes the effector more sensitive to stimulation.

Correct AnswerverifiedShow Answer

Muscarinic antagonists stimulate _____________ pupillary diameter.

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Alpha₂-adrenergic receptors on presynaptic axon terminals,when stimulated,cause

Correct Answer
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Blocking $\beta$ ₂-adrenergic receptors prevents airway

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Intracellular Ca²⁺ is elevated if norepinephrine binds to a(n) _____________ receptor.

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___________ selectively stimulates a₂ receptors in brain neurons thereby suppressing sympathoadrenal activation and lowering blood pressure.

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Nitric oxide is made when Ca²⁺ influx into the axon terminal indirectly activates nitric oxide synthetase,which forms nitric oxide from the amino acid L-

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