Question 1

Which structure is innervated only by the sympathetic division of the ANS?&#10;A)bladder&#10;B)salivary glands&#10;C)eye&#10;D)skin

Accepted Answer

The skin is the only structure among the options that is innervated only by the sympathetic division of the autonomic nervous system (ANS). The sympathetic division controls sweating and piloerection (goosebumps) in the skin. Other structures like the bladder, salivary glands, and eye receive innervation from both the sympathetic and parasympathetic divisions of the ANS.

Question 2

The neurons found in the sympathetic chain ganglia are _ neurons.&#10;A)sympathetic postganglionic&#10;B)parasympathetic postganglionic&#10;C)parasympathetic preganglionic&#10;D)sympathetic preganglionic

Accepted Answer

The neurons found in the sympathetic chain ganglia are sympathetic postganglionic neurons. These neurons receive input from sympathetic preganglionic neurons and then project to target organs, playing a key role in the sympathetic nervous system's response.

Question 3

This part of the ANS causes erection and ejaculation in the male reproductive system.&#10;A)both sympathetic and parasympathetic&#10;B)parasympathetic&#10;C)sympathetic

Accepted Answer

The autonomic nervous system (ANS) controls involuntary body functions, and both its divisions, the sympathetic and parasympathetic nervous systems, play roles in male sexual function. The parasympathetic nervous system is primarily responsible for the erection by causing vasodilation and increased blood flow to the penis, while the sympathetic nervous system is involved in ejaculation.

Question 4

The second neuron of the two- neuron chain in the ANS is called the neuron.&#10;A)intermediary&#10;B)postganglionic&#10;C)final common&#10;D)preganglionic

Accepted Answer

The second neuron in the autonomic nervous system (ANS) chain is known as the postganglionic neuron, which directly innervates the target organ following the preganglionic neuron.

Question 5

The sympathetic pathway has preganglionic fibers and postganglionic fibers.&#10;A)short; long&#10;B)long; short&#10;C)long; long&#10;D)short; short

Accepted Answer

The sympathetic nervous system typically has short preganglionic fibers and long postganglionic fibers. This is because the sympathetic ganglia are located close to the spinal cord, leading to short preganglionic fibers, and the postganglionic fibers then extend to the target organs, which are often located some distance away, making them long.

Question 6

This is a parasympathetic ganglion.&#10;A)intramural ganglion&#10;B)celiac ganglion&#10;C)mesenteric ganglia&#10;D)paravertebral ganglia

Accepted Answer

Intramural ganglia are associated with the parasympathetic nervous system, typically found within the walls of target organs like the digestive tract, where they help regulate the functions of those organs. The other options listed are associated with the sympathetic nervous system.

Question 7

The ganglia of the parasympathetic division of the ANS are located _ .&#10;A)within the walls of, or close to, the organs served&#10;B)in a collateral or prevertebral ganglion&#10;C)in two trunks (or chains), one on each side of the vertebral column, and in a collateral or prevertebral ganglion&#10;D)in two trunks (or chains), one on each side of the vertebral column

Accepted Answer

The ganglia of the parasympathetic division of the autonomic nervous system (ANS) are located within the walls of, or close to, the organs they serve. This proximity allows for more localized control of organ function compared to the sympathetic division, whose ganglia are typically located further from the target organs.

Question 8

The following structures are innervated by both sympathetic and parasympathetic divisions of the ANS.&#10;A)lungs&#10;B)heart, lungs, stomach, and intestines&#10;C)stomach and intestines&#10;D)heart

Accepted Answer

The heart, lungs, stomach, and intestines are all innervated by both the sympathetic and parasympathetic divisions of the autonomic nervous system (ANS), allowing for a balance of excitatory and inhibitory signals that regulate their functions.

Question 9

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.&#10;A)parasympathetic and sympathetic divisions of the ANS&#10;B)parasympathetic division of the ANS&#10;C)sympathetic nervous system of the ANS&#10;D)somatic nervous system

Accepted Answer

The somatic nervous system is responsible for voluntary movements and motor neurons in this system are located in the brain stem or ventral horns of the spinal cord, sending their axons directly to muscles.

Question 10

The preganglionic neurons of the sympathetic division of the autonomic nervous system are located in the .&#10;A)lateral horns of C1 to C8 of the spinal cord&#10;B)lateral horns of T1 to L2 of the spinal cord&#10;C)lateral horns of L3 to S4 of the spinal cord&#10;D)lateral horns of S1 to S2 of the spinal cord

Accepted Answer

The preganglionic neurons of the sympathetic division of the autonomic nervous system are located in the lateral horns of the spinal cord segments T1 to L2. This region is often referred to as the thoracolumbar division of the autonomic nervous system.

Question 11

What is true of the autonomic nervous system that makes it different from the somatic nervous system?&#10;A)all the motor neurons are located within the CNS&#10;B)there is a two- neuron chain from the CNS to the effector organ.&#10;C)axons go directly from the CNS to the effector organ&#10;D)motor neurons are located in the ventral horns of the spinal cord

Accepted Answer

The answer of What is true of the autonomic nervous...

Question 12

The parasympathetic division of the autonomic nervous system is also called the division.&#10;A)thoracolumbar&#10;B)cervicothoracic&#10;C)craniosacral

Accepted Answer

The answer of The parasympathetic division of the autonomic nervous...

Question 13

The autonomic nervous system (ANS).&#10;A)serves the same organs as the somatic nervous system&#10;B)serves smooth muscle, cardiac muscle, and glands&#10;C)innervates skeletal muscles&#10;D)is under conscious control

Accepted Answer

The answer of The autonomic nervous system (ANS).&#10;A)serves the same...

Question 14

This division of the ANS increases both the rate and force of contraction of the heart.&#10;A)both sympathetic and parasympathetic&#10;B)sympathetic&#10;C)parasympathetic

Accepted Answer

The answer of This division of the ANS increases both...

Question 15

This division of the ANS increases motility and secretion in the digestive tract.&#10;A)parasympathetic&#10;B)sympathetic&#10;C)both sympathetic and parasympathetic

Accepted Answer

The answer of This division of the ANS increases motility...

Question 16

The postganglionic axons of sympathetic neurons are _ .&#10;A)cholinergic; they release acetylcholine&#10;B)adrenergic; they release norepinephrine&#10;C)adrenergic; they release acetylcholine&#10;D)cholinergic; they release norepinephrine

Accepted Answer

The answer of The postganglionic axons of sympathetic neurons are...

Question 17

The function of the parasympathetic nervous system is _ .&#10;A)housekeeping or &#34;resting and digesting&#34;&#10;B)both coping with emergency situations and preparing for &#34;fight- or- flight&#34;&#10;C)preparing for &#34;fight- or- flight&#34;&#10;D)coping with emergency situations

Accepted Answer

The answer of The function of the parasympathetic nervous system...

Question 18

Drugs that mimic the action of norepinephrine are likely to affect .&#10;A)both the sympathetic and parasympathetic divisions of the ANS&#10;B)the parasympathetic division of the ANS&#10;C)the sympathetic division of the ANS

Accepted Answer

The answer of Drugs that mimic the action of norepinephrine...

Deck 20: The Autonomic Nervous System