Deck 20: The Autonomic Nervous System

Question 1

The ganglia of the parasympathetic division of the ANS are located .

A) in a collateral or prevertebral ganglion
B) within the walls of, or close to, the organs served
C) in two trunks (or chains), one on each side of the vertebral column, and in a collateral or prevertebral ganglion
D) in two trunks (or chains), one on each side of the vertebral column

Answer 1

B

Question 2

The postganglionic axons of sympathetic neurons are _ .

A) adrenergic; they release norepinephrine
B) adrenergic; they release acetylcholine
C) cholinergic; they release acetylcholine
D) cholinergic; they release norepinephrine

Answer 2

A

Question 3

The motor neurons of this division of the nervous system are located in the brain stem or ventral horns of the spinal cord and send their axons directly to muscles.

A) parasympathetic and sympathetic divisions of the ANS
B) sympathetic nervous system of the ANS
C) somatic nervous system
D) parasympathetic division of the ANS

Answer 3

C

Question 4

What is true of the autonomic nervous system that makes it different from the somatic nervous system?

A) Motor neurons are located in the ventral horns of the spinal cord.
B) There is a two-neuron chain from the CNS to the effector organ.
C) All the motor neurons are located within the CNS.
D) Axons go directly from the CNS to the effector organ.

Question 5

The second neuron of the two-neuron chain in the ANS is called the neuron.

A) preganglionic
B) final common
C) intermediary
D) postganglionic

Question 6

The parasympathetic division of the autonomic nervous system is also called the _ division.

A) cervicothoracic
B) craniosacral
C) thoracolumbar

Question 7

The autonomic nervous system (ANS) _ _.

A) serves smooth muscle, cardiac muscle, and glands
B) is under conscious control
C) serves the same organs as the somatic nervous system
D) innervates skeletal muscles

Question 8

Which structure is innervated only by the sympathetic division of the ANS?

A) bladder
B) salivary glands
C) skin
D) eye

Question 9

The following structures are innervated by both sympathetic and parasympathetic divisions of the ANS.

A) stomach and intestines
B) heart
C) heart, lungs, stomach, and intestines
D) lungs

Question 10

The neurons found in the sympathetic chain ganglia are _ neurons.

A) sympathetic preganglionic
B) parasympathetic preganglionic
C) sympathetic postganglionic
D) parasympathetic postganglionic

Question 11

This division of the ANS increases motility and secretion in the digestive tract.

A) sympathetic
B) parasympathetic
C) both sympathetic and parasympathetic

Question 12

The preganglionic neurons of the sympathetic division of the autonomic nervous system are located in the .

A) lateral horns of L3 to S4 of the spinal cord
B) lateral horns of C1 to C8 of the spinal cord
C) lateral horns of S1 to S2 of the spinal cord
D) lateral horns of T1 to L2 of the spinal cord

Question 13

Drugs that mimic the action of norepinephrine are likely to affect _.

A) both the sympathetic and parasympathetic divisions of the ANS
B) the parasympathetic division of the ANS
C) the sympathetic division of the ANS

Question 14

This division of the ANS increases both the rate and force of contraction of the heart.

A) sympathetic
B) parasympathetic
C) both sympathetic and parasympathetic

Question 15

The galvanic skin response or electrodermal activity (EDA) test measures .

A) production of oil or sebum by the skin
B) electrical conductance of the skin
C) stimulation of skin receptors
D) dilation or constriction of blood vessels in the skin

Question 16

The sympathetic pathway has preganglionic fibers and postganglionic fibers.

A) long; short
B) long; long
C) short; long
D) short; short

Question 17

The function of the parasympathetic nervous system is _ .

A) coping with emergency situations
B) preparing for "fight-or-flight"
C) housekeeping or "resting and digesting"
D) both coping with emergency situations and preparing for "fight-or-flight"

Question 18

This is a parasympathetic ganglion.

A) mesenteric ganglia
B) celiac ganglion
C) paravertebral ganglia
D) intramural ganglion

Question 19

This part of the ANS causes erection and ejaculation in the male reproductive system.

A) sympathetic
B) parasympathetic
C) both sympathetic and parasympathetic

Question 20

Rami communicantes contain axons from .

A) both sympathetic and parasympathetic divisions of the ANS
B) the sympathetic division of the ANS
C) the parasympathetic division of the ANS
D) the somatic nervous system

Question 21

The preganglionic axons of sympathetic and parasympathetic neurons are _.

A) adrenergic; they release norepinephrine
B) cholinergic; they release acetylcholine
C) cholinergic; they release norepinephrine
D) adrenergic; they release acetylcholine