Question 1

Stimulation of β2 receptors in the lung causes

Accepted Answer

A)   bronchoconstriction.
B)   bronchodilation.

Question 2

Specific prevertebral ganglia are named after the

Accepted Answer

A)   effector organ stimulated by the postganglionic axon.
B)   major abdominal arteries around which they are found.
C)   vertebra from under which the preganglionic axon travels.
D)   distance from the corresponding parasympathetic ganglion.
E)   early anatomist who discovered and described them.

Question 3

Which autonomic plexus consists of postganglionic sympathetic axons that come off the cervical and thoracic sympathetic trunk ganglia, as well as preganglionic axons from the vagus nerve?

Accepted Answer

A)   Esophageal plexus
B)   Pulmonary plexus
C)   Abdominal aortic plexus
D)   Hypogastric plexus
E)   Cardiac plexus

Question 4

The cardiac sphincter is innervated by parasympathetic axons coming from the ________ plexus.

Accepted Answer

A)   esophageal
B)   abdominal aortic
C)   pulmonary
D)   hypogastric
E)   cardiac

Question 5

The sympathetic and parasympathetic systems have ________ effects on heart rate.

Accepted Answer

A)   antagonistic
B)   cooperative
C)   synergistic
D)   negligible

Question 6

There are ________ prevertebral ganglia.

Accepted Answer

A)   2
B)   3
C)   4
D)   5
E)   12

Question 7

The sympathetic preganglionic neuron cell bodies are housed in the ________ horn of the appropriate thoracolumbar regions of the spinal cord.

Accepted Answer

The answer of The sympathetic preganglionic neuron cell bodies are...

Question 8

When neurotransmitter binds to muscarinic receptors on smooth muscle cells in the gastrointestinal tract,

Accepted Answer

A)   motility increases.
B)   motility decreases.

Question 9

The lack of extensive divergence of parasympathetic preganglionic axons prevents the mass activation seen in the sympathetic division.

Accepted Answer

A) True 
 B)False

Question 10

Postganglionic axons of the parasympathetic branch of the ANS cause increased secretion by the lacrimal glands.

Accepted Answer

A) True 
 B)False

Question 11

Sympathetic splanchnic nerves are composed of

Accepted Answer

A)   preganglionic sympathetic axons that synapse in a sympathetic trunk ganglion.
B)   preganglionic sympathetic axons that did not synapse in a sympathetic trunk ganglion.
C)   postganglionic sympathetic axons that synapse in a sympathetic trunk ganglion.
D)   postganglionic sympathetic axons that did not synapse in a sympathetic trunk ganglion.
E)   None of the choices is correct.

Question 12

The somatic nervous system can both excite and inhibit effectors.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following is correct about the autonomic nervous system (ANS) ?

Accepted Answer

A)   The ANS is part of both the CNS and the PNS.
B)   ANS functions are involuntary.
C)   ANS motor neurons innervate cardiac muscle fibers, smooth muscle fibers, and glands.
D)   ANS motor pathways always include two neurons.
E)   All of the choices are correct.

Question 14

Consider a basketball player whose heart is racing during the final moments of a game. With seconds on the clock, she makes a jump shot. Her excitement is a function of her ________ nervous system, and her movements are a function of her ________ nervous system.

Accepted Answer

A)   parasympathetic; sympathetic
B)   sympathetic; parasympathetic
C)   somatic; sympathetic
D)   sympathetic; somatic
E)   somatic; parasympathetic

Question 15

Many different neurons can stimulate an autonomic ganglion cell simultaneously due to

Accepted Answer

A)   convergence.
B)   reciprocity.
C)   divergence.
D)   reverberation.

Question 16

Muscarinic receptors are proteins that bind the neurotransmitter

Accepted Answer

A)   acetylcholine.
B)   epinephrine.
C)   norepinephrine.

Question 17

Select all that are examples of how autonomic reflexes help maintain homeostasis.

Accepted Answer

A)   Decreasing blood pressure
B)   Emptying of the bladder
C)   Initiating defecation
D)   Preventing overstretching of skeletal muscles

Question 18

Parasympathetic stimulation of the ciliary muscles allows one to see close-up objects.

Accepted Answer

A) True 
 B)False

Question 19

The postganglionic parasympathetic fibers that are controlled by pelvic splanchnic nerves innervate the
A: Large intestine
B: Reproductive organs
C: Salivary glands
D: Pupillary constrictor muscles
E: Urinary bladder
F: Ureters

Accepted Answer

A)   a, d, e
B)   b, c, e
C)   a, b, e, f
D)   c, d, f
E)   a, c

Question 20

The preganglionic axons of CN III extend to the ________ ganglion.

Accepted Answer

A)   pterygopalatine
B)   submandibular
C)   otic
D)   pelvic
E)   ciliary

Exam 15: Nervous System: Autonomic Nervous System

The cardiac sphincter is innervated by parasympathetic axons coming from the ________ plexus.

Correct AnswerverifiedShow Answer

Muscarinic receptors are proteins that bind the neurotransmitter

Correct AnswerverifiedShow Answer

Stimulation of β2 receptors in the lung causes

Correct AnswerverifiedShow Answer

Select all that are examples of how autonomic reflexes help maintain homeostasis.

Correct AnswerverifiedShow Answer

The sympathetic and parasympathetic systems have ________ effects on heart rate.

Correct AnswerverifiedShow Answer

Consider a basketball player whose heart is racing during the final moments of a game. With seconds on the clock, she makes a jump shot. Her excitement is a function of her ________ nervous system, and her movements are a function of her ________ nervous system.

Correct AnswerverifiedShow Answer

Specific prevertebral ganglia are named after the

Correct AnswerverifiedShow Answer

The preganglionic axons of CN III extend to the ________ ganglion.

Correct AnswerverifiedShow Answer

There are ________ prevertebral ganglia.

Correct AnswerverifiedShow Answer

Many different neurons can stimulate an autonomic ganglion cell simultaneously due to

Correct AnswerverifiedShow Answer

Postganglionic axons of the parasympathetic branch of the ANS cause increased secretion by the lacrimal glands.

Correct AnswerverifiedShow Answer

Which of the following is correct about the autonomic nervous system (ANS) ?

Correct AnswerverifiedShow Answer

Which autonomic plexus consists of postganglionic sympathetic axons that come off the cervical and thoracic sympathetic trunk ganglia, as well as preganglionic axons from the vagus nerve?

Correct AnswerverifiedShow Answer

The lack of extensive divergence of parasympathetic preganglionic axons prevents the mass activation seen in the sympathetic division.

Correct AnswerverifiedShow Answer

The sympathetic preganglionic neuron cell bodies are housed in the ________ horn of the appropriate thoracolumbar regions of the spinal cord.

Correct AnswerverifiedShow Answer

The somatic nervous system can both excite and inhibit effectors.

Correct AnswerverifiedShow Answer

Parasympathetic stimulation of the ciliary muscles allows one to see close-up objects.

Correct AnswerverifiedShow Answer

When neurotransmitter binds to muscarinic receptors on smooth muscle cells in the gastrointestinal tract,

Correct AnswerverifiedShow Answer

Sympathetic splanchnic nerves are composed of

Correct AnswerverifiedShow Answer

The postganglionic parasympathetic fibers that are controlled by pelvic splanchnic nerves innervate the A: Large intestine B: Reproductive organs C: Salivary glands D: Pupillary constrictor muscles E: Urinary bladder F: Ureters

Correct AnswerverifiedShow Answer

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Stimulation of β₂ receptors in the lung causes

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Consider a basketball player whose heart is racing during the final moments of a game. With seconds on the clock, she makes a jump shot. Her excitement is a function of her nervous system, and her movements are a function of her nervous system.

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