Question 1

The &#34;rest-and-digest&#34; system of the autonomic nervous system is the ________.&#10;A) peripheral nervous system&#10;B) sympathetic&#10;C) somatic division&#10;D) parasympathetic

Accepted Answer

The "rest-and-digest" system of the autonomic nervous system is also called the parasympathetic division. Therefore, the correct answer is D. The peripheral nervous system includes both the somatic and autonomic nervous systems, while the sympathetic division is the part of the autonomic nervous system responsible for the "fight-or-flight" response.

Question 2

Preparing the body for the &#34;fight-or-flight&#34; response is the role of the ________.&#10;A) parasympathetic nervous system&#10;B) sympathetic nervous system&#10;C) cerebrum&#10;D) somatic nervous system

Accepted Answer

The sympathetic nervous system is responsible for the fight-or-flight response, which prepares the body to respond to a perceived threat or stressor. The parasympathetic nervous system is responsible for the opposite response, the relaxation response, which is activated when the perceived threat or stressor has passed. The cerebrum is responsible for higher brain functions such as language, memory, and consciousness. The somatic nervous system is responsible for voluntary movements and sensory information.

Question 3

All of the following are collateral ganglia that branch off of the splanchnic nerves EXCEPT ________.&#10;A) paravertebral ganglia&#10;B) celiac ganglia&#10;C) inferior mesenteric ganglion is a collateral ganglia.&#10;D) superior mesenteric ganglion

Accepted Answer

Paravertebral ganglia are part of the sympathetic trunk, not collateral ganglia. Collateral ganglia, such as the celiac, inferior mesenteric, and superior mesenteric ganglia, are located anterior to the vertebral column and receive input from splanchnic nerves.

Question 4

The vagus nerve does NOT innervate the ________.&#10;A) salivary glands&#10;B) pancreas&#10;C) gallbladder&#10;D) kidneys

Accepted Answer

The answer of The vagus nerve does NOT innervate the...

Question 5

Which of the following effectors is NOT controlled by the autonomic nervous system?&#10;A) smooth muscle&#10;B) cardiac muscle&#10;C) glands&#10;D) skeletal muscle

Accepted Answer

The autonomic nervous system controls involuntary actions such as smooth muscle contractions, cardiac muscle contractions, and glandular secretions. However, skeletal muscles are controlled by the somatic nervous system, which is responsible for voluntary movements. Therefore, the effector that is NOT controlled by the autonomic nervous system is skeletal muscle (Choice D).

Question 6

Sympathetic fibers may leave the spinal cord at which vertebrae?&#10;A) first cervical&#10;B) fifth lumbar&#10;C) first coccyx&#10;D) first thoracic

Accepted Answer

Sympathetic fibers typically leave the spinal cord between the first thoracic and the third lumbar vertebrae, forming the sympathetic trunk. Therefore, the best choice is D, first thoracic.

Question 7

Fibers that pass through the sympathetic chain ganglia without synapsing and join to form a network called ________.&#10;A) gray rami&#10;B) white ramus&#10;C) splanchnic nerves&#10;D) spinal nerves

Accepted Answer

Fibers that pass through the sympathetic chain ganglia without synapsing are part of the splanchnic nerves.

Question 8

Which of the following statements is FALSE?&#10;A) Sympathetic has extensive branching of preganglionic fibers and parasympathetic has little branching of preganglionic fibers.&#10;B) Sympathetic division has short preganglionic fibers and long postganglionic fibers; parasympathetic division has long preganglionic fibers and short postganglionic fibers.&#10;C) Sympathetic origin is craniosacral; parasympathetic is thoracolumbar.&#10;D) Sympathetic ganglia are close to the CNS; parasympathetic ganglia are close to the organs they serve.

Accepted Answer

The sympathetic nervous system originates in the thoracolumbar region of the spinal cord, while the parasympathetic nervous system originates in the craniosacral regions. The statement in option C incorrectly swaps these origins.

Question 9

The parasympathetic ganglion that serves the eye is the ________.&#10;A) otic ganglion&#10;B) ciliary ganglion&#10;C) pterygopalatine ganglia&#10;D) intramural ganglia

Accepted Answer

The ciliary ganglion serves the eye and is part of the parasympathetic nervous system. The otic ganglion serves the parotid gland, the pterygopalatine ganglia serves the lacrimal gland, and intramural ganglia are ganglia located within the walls of an organ.

Question 10

Which of the following is not a parasympathetic cranial nerve?&#10;A) glossopharyngeal&#10;B) abducens&#10;C) oculomotor&#10;D) facial

Accepted Answer

Abducens is a motor nerve that controls the lateral rectus muscle of the eye and is not part of the parasympathetic nervous system. The other choices (glossopharyngeal, oculomotor, and facial) are all parasympathetic cranial nerves.

Question 11

The white rami communicantes ________.&#10;A) are found only in the C1-T1 segments&#10;B) carry postganglionic fibers to the periphery&#10;C) are unmyelinated&#10;D) carry preganglionic axons to the sympathetic chain

Accepted Answer

The answer of The white rami communicantes ________.&#10;A) are found...

Question 12

Which of the following descriptions does NOT describe the ANS?&#10;A) a system of motor neurons that innervate all muscle cells&#10;B) involuntary nervous system&#10;C) general visceral motor system&#10;D) a system of motor neurons that innervated smooth muscle, cardiac muscle, and glands

Accepted Answer

The answer of Which of the following descriptions does NOT...

Deck 26: Autonomic Nervous System