Deck 12: Autonomic Nervous System

Question 1

Which of the following is least associated with monoamine oxidase (MAO)?

A) enzyme that degrades norepinephrine
B) found within all cholinergic nerve terminals
C) associated with sympathetic activity
D) associated with adrenergic fibers

Answer 1

found within all cholinergic nerve terminals

Question 2

An adrenergic fiber is one that

A) innervates the adrenal medulla.
B) is a preganglionic fiber.
C) originates in the midbrain.
D) secretes norepinephrine as its transmitter.

Answer 2

secretes norepinephrine as its transmitter.

Question 3

Alpha and beta receptors are

A) associated with the parasympathetic nervous system.
B) associated with craniosacral outflow.
C) located on the paravertebral ganglia.
D) activated by norepinephrine.

Answer 3

activated by norepinephrine.

Question 4

Which of the following is an adrenergic fiber?

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

Question 5

A drug that causes the heart to beat stronger and faster is called

A) parasympatholytic.
B) sympathomimetic.
C) sympatholytic.
D) anticholinergic.

Question 6

Which of the following is not an effector organ for the autonomic nerves?

A) skeletal muscle
B) visceral smooth muscle
C) glands
D) cardiac muscle

Question 7

Which neurotransmitter is secreted by a cholinergic fiber?

A) adrenaline
B) epinephrine
C) acetylcholine
D) norepinephrine

Question 8

Atropine is classified as a muscarinic antagonist or blocker and therefore is

A) parasympathomimetic.
B) sympatholytic.
C) vagolytic.
D) sympathomimetic.

Question 9

Which of the following is least descriptive of thoracolumbar outflow?

A) fight or flight
B) muscarinic and nicotinic receptors
C) sympathetic nervous system
D) paravertebral ganglia

Question 10

Which of the following is an effect of postganglionic parasympathetic discharge?

A) slowed heart rate
B) increased blood pressure
C) dilation of the pupil of the eye
D) stronger contraction of the heart

Question 11

Vasomotor tone is

A) a vasoconstrictor effect caused by background firing of the sympathetic nerves.
B) a vagally induced peripheral vasodilation.
C) caused by parasympathomimetic drugs.
D) caused by sympatholytic drugs.

Question 12

The effects of adrenal medullary secretion most resemble

A) craniosacral outflow.
B) firing of the somatic motor neurons.
C) sympathetic nerve discharge.
D) vagal discharge.

Question 13

Paravertebral ganglia

A) are part of the craniosacral outflow.
B) "drive" the vagus nerve.
C) are located within the organs of innervation.
D) are also called the sympathetic chain ganglia.

Question 14

Which of the following is most related to the "feed and breed" system?

A) pyramidal tracts
B) sympathetic nervous system
C) craniosacral outflow
D) rapid heart rate,palpitations,sweating

Question 15

Which of the following is characteristic of the sympathetic nervous system?

A) craniosacral outflow
B) cholinergic fibers only
C) paravertebral ganglia
D) postganglionic transmitter is ACh

Question 16

Which of the following is most characteristic of the parasympathetic nervous system?

A) adrenergic
B) norepinephrine
C) fight or flight
D) feed and breed

Question 17

Sympathetic and parasympathetic nerves

A) are somatic motor neurons.
B) supply voluntary skeletal muscles.
C) include the phrenic,sciatic,and brachial nerves.
D) innervate the viscera.

Question 18

What is another term for thoracolumbar outflow? 12-PAGE 2
Test Bank

A) vagal discharge
B) parasympathetic nervous system
C) sympathetic nervous system
D) limbic system

Question 19

Which of the following is characteristic of the parasympathetic nervous system?

A) fight or flight
B) thoracolumbar
C) paravertebral ganglia
D) postganglionic fiber is cholinergic

Question 20

A beta? adrenergic agonist

A) increases heart rate.
B) causes the release of acetylcholine.
C) blocks the effects of norepinephrine at its receptor site.
D) lowers blood pressure.

Question 21

Muscarinic receptors are

A) activated by norepinephrine.
B) located on the effector organs of the sympathetic nervous system.
C) activated by catecholamines such as adrenalin and dopamine.
D) activated by ACh.

Question 22

Which of the following is most descriptive of dual innervation of the autonomic nervous system?

A) muscarinic and nicotinic
B) alpha and beta
C) sympathetic and parasympathetic
D) beta1 and beta2

Question 23

A preoperative patient received an antimuscarinic drug (atropine).What drug-related postoperative consequence is he likely to experience?

A) decreased heart rate
B) difficult urination
C) elevated blood pressure
D) excess salivation

Question 24

Which of the following is least true of the vagus nerve?

A) cholinergic
B) slows heart rate
C) its effect on the heart is eliminated by a beta1 adrenergic blocker
D) its transmitter is ACh

Question 25

Vagal discharge activates

A) muscarinic receptors.
B) alpha1 adrenergic receptors.
C) beta1 adrenergic receptors.
D) the paravertebral ganglia.

Question 26

Which group is incorrect?

A) adrenergic receptors:alpha,beta
B) cholinergic receptors:muscarinic,nicotinic
C) neurotransmitters:norepinephrine,ACh,dopamine
D) sympathetic responses:decreased blood pressure,decreased heart rate,anxiety

Question 27

A patient has vagally induced bradycardia (slow heart rate).Which of the following will relieve the bradycardia?

A) muscarinic antagonist
B) beta1 adrenergic blocker
C) vagomimetic
D) alpha1 adrenergic agonist

Question 28

Sympathetic nerve stimulation causes relaxation of the breathing passages (bronchodilation).Which of the following drug classifications achieves this effect?

A) beta2 adrenergic agonist
B) alpha1 adrenergic blocker
C) vagomimetic
D) parasympathomimetic

Question 29

Sympathetic nervous system stimulation causes vasoconstriction of the blood vessels,thereby elevating blood pressure.Which of the following drug classifications lowers blood pressure?

A) vagolytic
B) sympatholytic
C) parasympathomimetic
D) vagomimetic