Question 1

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

Accepted Answer

A) True 
 B)False

Question 2

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. 
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.

Question 3

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. 
A)  sympathetic trunk. 
B)  parasympathetic trunk. 
C)  parasympathetic ganglion. 
D)  splanchnic ganglion.

Question 4

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

Accepted Answer

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

Question 5

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

Accepted Answer

A)  III 
B)  V 
C)  VII 
D)  IX 
E)  X 
A)  III 
B)  V 
C)  VII 
D)  IX 
E)  X

Question 6

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

Question 7

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

Accepted Answer

A) True 
 B)False

Question 8

Norepinephrine is a catecholamine.

Accepted Answer

A) True 
 B)False

Question 9

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

Question 10

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. 
A)  autonomic nervous system. 
B)  somatic nervous system.

Question 11

________ 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 12

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

Question 13

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. 
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.

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

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 16

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 pathway 
A)  Spinal nerve pathway 
B)  Postganglionic sympathetic nerve pathway 
C)  Adrenal medulla pathway 
D)  Splanchnic nerve pathway 
E)  Raynaud nerve pathway

Question 17

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. 
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.

Question 18

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

Question 19

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 bodies 
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 bodies

Question 20

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

Exam 15: Nervous System: Autonomic Nervous System

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

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

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

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

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

The arrector pili muscles receive their sympathetic innervation via the

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

Norepinephrine is a catecholamine.

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

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

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

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

Motor neurons of the autonomic nervous system

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

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

Which type of pathway does this diagram illustrate?

A rise in blood pressure causes a reflexive

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?

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

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.

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