Question 1

Norepinephrine is a catecholamine.

Accepted Answer

A) True 
 B)False

Question 2

The autonomic nervous system may receive input from visceral sensory neurons.

Accepted Answer

A) True 
 B)False

Question 3

Autonomic tone allows for a single division of the autonomic nervous system to control an organ by changing that division's activity levels up or down from baseline.

Accepted Answer

A) True 
 B)False

Question 4

From which part of the CNS do parasympathetic preganglionic axons of CN VII emerge?

Accepted Answer

A)   Mesencephalon
B)   Cerebral cortex
C)   Pons
D)   Lateral horns of the S1 spinal cord segment
E)   Lateral horns of the T1 spinal cord segmentF) A) and E)
G) B) and E)

Question 5

Which type of pathway does this diagram illustrate?

Accepted Answer

A)   Spinal nerve pathway
B)   Postganglionic sympathetic nerve pathway
C)   Adrenal medulla pathway
D)   Splanchnic nerve pathway
E)   Raynaud nerve pathwayF) A) and E)
G) All of the above

Question 6

Which is not characteristic of the parasympathetic division of the ANS?

Accepted Answer

A)   Long postganglionic axons
B)   Long preganglionic axons
C)   No rami communicantes
D)   Terminal ganglia close to the target organ
E)   Craniosacral preganglionic neuron cell bodiesF) B) and C)
G) A) and B)

Question 7

Which is false regarding the somatic nervous system (SNS) ?

Accepted Answer

A)   The SNS is under voluntary control.
B)   The SNS uses motor and sensory neurons.
C)   The SNS innervates skeletal muscle fibers.
D)   The SNS is part of both the CNS and the PNS.
E)   The SNS is activated by visceral sensory neurons.F) A) and C)
G) A) and E)

Question 8

The second neuron in an autonomic pathway is called a ________ neuron.

Accepted Answer

The answer of The second neuron in an autonomic pathway...

Question 9

The superior mesenteric ganglion of the sympathetic branch of the ANS is adjacent to the origin of the superior mesenteric artery.

Accepted Answer

A) True 
 B)False

Question 10

White rami communicantes carry preganglionic sympathetic axons from the T1-L2 spinal nerves to the sympathetic trunk.

Accepted Answer

A) True 
 B)False

Question 11

Motor neurons of the autonomic nervous system

Accepted Answer

A)   always excite effector organs.
B)   always inhibit effector organs.
C)   can either excite or inhibit effector organs.
D)   do not excite effector organs but monitor their status of activity.E) A) and C)
F) C) and D)

Question 12

Which is not an effector innervated by the autonomic nervous system?

Accepted Answer

A)   Cardiac muscle
B)   Smooth muscle
C)   Glands
D)   Skeletal muscle
E)   None of the choices is correct.F) B) and D)
G) C) and D)

Question 13

A rise in blood pressure causes a reflexive

Accepted Answer

A)   activation of the parasympathetic system and inhibition of the sympathetic system.
B)   activation of the sympathetic system and inhibition of the parasympathetic system.
C)   activation of both the parasympathetic system and the sympathetic system.
D)   inhibition of both the parasympathetic system and the sympathetic system.E) A) and B)
F) A) and C)

Question 14

________ rami communicantes carry postganglionic sympathetic axons from the sympathetic trunk to the spinal nerves.

Accepted Answer

The answer of ________ rami communicantes carry postganglionic sympathetic axons...

Question 15

Tear secretions are governed by parasympathetic fibers within which cranial nerve?

Accepted Answer

A)   III
B)   V
C)   VII
D)   IX
E)   XF) B) and D)
G) C) and D)

Question 16

Which sympathetic pathway involves a preganglionic neuron that synapses with a ganglionic neuron in a sympathetic trunk ganglion, but the postganglionic axon does not leave the trunk via a gray ramus?

Accepted Answer

A)   Splanchnic nerve pathway
B)   Adrenal medulla pathway
C)   Postganglionic sympathetic nerve pathway
D)   Spinal nerve pathway
E)   None of the choices is correct.F) A) and C)
G) A) and B)

Question 17

________ nerves are composed of preganglionic sympathetic axons that did not synapse in a sympathetic ganglion.

Accepted Answer

The answer of ________ nerves are composed of preganglionic sympathetic...

Question 18

The arrector pili muscles receive their sympathetic innervation via the

Accepted Answer

A)   splanchnic nerve pathway.
B)   adrenal medulla pathway.
C)   postganglionic sympathetic nerve pathway.
D)   spinal nerve pathway.
E)   None of the choices is correct.F) A) and B)
G) A) and E)

Question 19

A structure that is said to resemble a pearl necklace is a

Accepted Answer

A)   sympathetic trunk.
B)   parasympathetic trunk.
C)   parasympathetic ganglion.
D)   splanchnic ganglion.E) B) and D)
F) B) and C)

Question 20

The knee jerk reflex (when the quadriceps muscles contract after the patellar tendon is tapped)  is directed by the

Accepted Answer

A)   autonomic nervous system.
B)   somatic nervous system.C) A) and B)
D) undefined

Exam 15: Nervous System: Autonomic Nervous System

Tear secretions are governed by parasympathetic fibers within which cranial nerve?

Correct AnswerverifiedShow Answer

The knee jerk reflex (when the quadriceps muscles contract after the patellar tendon is tapped) is directed by the

Correct AnswerverifiedShow Answer

White rami communicantes carry preganglionic sympathetic axons from the T1-L2 spinal nerves to the sympathetic trunk.

Correct AnswerverifiedShow Answer

Motor neurons of the autonomic nervous system

Correct AnswerverifiedShow Answer

Autonomic tone allows for a single division of the autonomic nervous system to control an organ by changing that division's activity levels up or down from baseline.

Correct AnswerverifiedShow Answer

Which is not an effector innervated by the autonomic nervous system?

Correct AnswerverifiedShow Answer

________ nerves are composed of preganglionic sympathetic axons that did not synapse in a sympathetic ganglion.

Correct AnswerverifiedShow Answer

Which type of pathway does this diagram illustrate?

Correct AnswerverifiedShow Answer

The autonomic nervous system may receive input from visceral sensory neurons.

Correct AnswerverifiedShow Answer

A rise in blood pressure causes a reflexive

Correct AnswerverifiedShow Answer

Which is not characteristic of the parasympathetic division of the ANS?

Correct AnswerverifiedShow Answer

The second neuron in an autonomic pathway is called a ________ neuron.

Correct AnswerverifiedShow Answer

Which sympathetic pathway involves a preganglionic neuron that synapses with a ganglionic neuron in a sympathetic trunk ganglion, but the postganglionic axon does not leave the trunk via a gray ramus?

Correct AnswerverifiedShow Answer

Norepinephrine is a catecholamine.

Correct AnswerverifiedShow Answer

From which part of the CNS do parasympathetic preganglionic axons of CN VII emerge?

Correct AnswerverifiedShow Answer

A structure that is said to resemble a pearl necklace is a

Correct AnswerverifiedShow Answer

________ rami communicantes carry postganglionic sympathetic axons from the sympathetic trunk to the spinal nerves.

Correct AnswerverifiedShow Answer

The arrector pili muscles receive their sympathetic innervation via the

Correct AnswerverifiedShow Answer

Which is false regarding the somatic nervous system (SNS) ?

Correct AnswerverifiedShow Answer

The superior mesenteric ganglion of the sympathetic branch of the ANS is adjacent to the origin of the superior mesenteric artery.

Correct AnswerverifiedShow Answer

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