Question 1

Preganglionic neurons of the sympathetic division originate in the

Accepted Answer

A) dorsal horns of the craniosacral brain and spinal cord. 
B) ventral horns of the cervical and sacral spinal cord. 
C) dorsal horns of the thoracolumbar spinal segments. 
D) lateral horns of the thoracolumbar spinal segments. 
E) ventral horns of the cervical and thoracic spinal segments. 
A) dorsal horns of the craniosacral brain and spinal cord. 
B) ventral horns of the cervical and sacral spinal cord. 
C) dorsal horns of the thoracolumbar spinal segments. 
D) lateral horns of the thoracolumbar spinal segments. 
E) ventral horns of the cervical and thoracic spinal segments.

Question 2

Autonomic tone refers to

Accepted Answer

A) whether a response is stimulatory or inhibitory. 
B) whether the body's reaction is to fight or to flee. 
C) the continual activity maintained by the sympathetic and parasympathetic divisions. 
D) the degree of tension in skeletal muscles at rest. 
A) whether a response is stimulatory or inhibitory. 
B) whether the body's reaction is to fight or to flee. 
C) the continual activity maintained by the sympathetic and parasympathetic divisions. 
D) the degree of tension in skeletal muscles at rest.

Question 3

The diameter of many blood vessels is controlled exclusively by the ________ nervous system,and decreases in the activity of this system result in _________.

Accepted Answer

A) parasympathetic,vasoconstriction 
B) parasympathetic,vasodilation 
C) somatic,vasoconstriction. 
D) sympathetic,vasoconstriction. 
E) sympathetic,vasodilation. 
A) parasympathetic,vasoconstriction 
B) parasympathetic,vasodilation 
C) somatic,vasoconstriction. 
D) sympathetic,vasoconstriction. 
E) sympathetic,vasodilation.

Question 4

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. 
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 5

In the stress response,the process by which many structures are activated simultaneously is known as ________ activation.

Accepted Answer

The answer of In the stress response,the process by which...

Question 6

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 7

The cranial nerve that supplies parasympathetic innervation to the thoracic organs is

Accepted Answer

A) CN II. 
B) CN III. 
C) CN VI. 
D) CN IX. 
E) CN X. 
A) CN II. 
B) CN III. 
C) CN VI. 
D) CN IX. 
E) CN X.

Question 8

Sweating is a result of sympathetic stimulation.

Accepted Answer

A) True 
 B)False

Question 9

In the heart,activation of these receptors increases heart rate.

Accepted Answer

A) $\alpha$1 
B) $\alpha$2 
C) $\beta$1 
D) $\beta$2 
A) $\alpha$1 
B) $\alpha$2 
C) $\beta$1 
D) $\beta$2

Question 10

The two divisions of the autonomic nervous system

Accepted Answer

A) use preganglionic and postganglionic neurons to innervate skeletal muscle. 
B) contain autonomic ganglia to house ganglionic neurons. 
C) are voluntary. 
D) are composed of PNS structures only. 
E) function only during sleep. 
A) use preganglionic and postganglionic neurons to innervate skeletal muscle. 
B) contain autonomic ganglia to house ganglionic neurons. 
C) are voluntary. 
D) are composed of PNS structures only. 
E) function only during sleep.

Question 11

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. 
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 12

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

Question 13

Gray rami from the sympathetic trunk connect to

Accepted Answer

A) alternating spinal nerves. 
B) the cranial nerves. 
C) all spinal nerves. 
D) the sympathetic trunk. 
A) alternating spinal nerves. 
B) the cranial nerves. 
C) all spinal nerves. 
D) the sympathetic trunk.

Question 14

Which sympathetic pathway involves only a preganglionic axon going to the effector organ

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 15

The somatic nervous system and the autonomic nervous system are part of both the peripheral nervous system and the central nervous system.

Accepted Answer

A) True 
 B)False

Question 16

Parasympathetic activity is responsible for increased smooth muscle motility and secretory activity in digestive tract organs.

Accepted Answer

A) True 
 B)False

Question 17

The centers for cardiac,digestive,and vasomotor functions are housed within the

Accepted Answer

A) brainstem. 
B) hypothalamus. 
C) spinal cord. 
D) cerebral cortex. 
E) cerebellum. 
A) brainstem. 
B) hypothalamus. 
C) spinal cord. 
D) cerebral cortex. 
E) cerebellum.

Question 18

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

Question 19

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

Accepted Answer

A) True 
 B)False

Question 20

The parasympathetic autonomic responses associated with defecation and urination are processed and controlled at the level of the

Accepted Answer

A) brainstem. 
B) hypothalamus. 
C) spinal cord. 
D) cerebellum. 
E) limbic center. 
A) brainstem. 
B) hypothalamus. 
C) spinal cord. 
D) cerebellum. 
E) limbic center.

Exam 15: Nervous System: Autonomic Nervous System

Preganglionic neurons of the sympathetic division originate in the

Autonomic tone refers to

The diameter of many blood vessels is controlled exclusively by the ________ nervous system,and decreases in the activity of this system result in _________.

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

In the stress response,the process by which many structures are activated simultaneously is known as ________ activation.

Motor neurons of the autonomic nervous system

The cranial nerve that supplies parasympathetic innervation to the thoracic organs is

Sweating is a result of sympathetic stimulation.

In the heart,activation of these receptors increases heart rate.

The two divisions of the autonomic nervous system

Specific prevertebral ganglia are named after the

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.

Gray rami from the sympathetic trunk connect to

Which sympathetic pathway involves only a preganglionic axon going to the effector organ

The somatic nervous system and the autonomic nervous system are part of both the peripheral nervous system and the central nervous system.

Parasympathetic activity is responsible for increased smooth muscle motility and secretory activity in digestive tract organs.

The centers for cardiac,digestive,and vasomotor functions are housed within the

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

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

The parasympathetic autonomic responses associated with defecation and urination are processed and controlled at the level of the

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