Deck 12: Autonomic Nervous System

Question 1

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

A)Fight-or-flight response
B)Thoracolumbar
C)Paravertebral ganglia
D)Postganglionic fiber is cholinergic

Answer 1

Postganglionic fiber is cholinergic

Question 2

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

Answer 2

Slowed heart rate

Question 3

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 3

Found within all cholinergic nerve terminals

Question 4

Which neurotransmitter is secreted by a cholinergic fiber?

A)Adrenaline
B)Epinephrine
C)Acetylcholine
D)Norepinephrine

Question 5

What is another term for thoracolumbar outflow?

A)Vagal discharge
B)Parasympathetic nervous system
C)Sympathetic nervous system
D)Limbic system

Question 6

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 7

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 8

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

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

Question 9

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

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

Question 10

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 11

Which of the following is an adrenergic fiber?

A)Postganglionic parasympathetic
B)Preganglionic sympathetic
C)Preganglionic parasympathetic
D)Postganglionic sympathetic

Question 12

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 13

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.

Question 14

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

A)Adrenergic
B)Norepinephrine
C)Fight-or-flight response
D)Feed-and-breed system

Question 15

A beta₁-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 16

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 17

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 18

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.

Question 19

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 20

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 21

Which of the following is true of AChase,MAO,and COMT?

A)Terminate adrenergic receptor activation
B)Are enzymes that degrade neurotransmitters
C)Are adrenergic neurotransmitters
D)Are neurotransmitters that activate nicotinic receptors

Question 22

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 drug
D)Alpha1-adrenergic agonist

Question 23

Beta adrenergic blockade

A)dilates the respiratory bronchioles and therefore relieves the symptoms of asthma.
B)is apt to induce tachycardia.
C)decreases heart rate but also causes bronchoconstriction.
D)mimics sympathetic outflow.

Question 24

Muscarinic receptors are associated with

A)paravertebral ganglia.
B)preganglionic parasympathetic fibers.
C)postganglionic parasympathetic fibers.
D)all fibers that secrete ACh.

Question 25

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 26

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

Question 27

Which of the following is (are) most related to the muscarinic receptors?

A)Paravertebral ganglia
B)ACh
C)Fight-or-flight response
D)Adrenergic fibers

Question 28

Which of the following is most related to the postganglionic sympathetics?

A)Muscarinic receptors
B)ACh
C)Alpha and beta receptor activation
D)Craniosacral outflow

Question 29

Muscarinic activation is

A)a consequence of vagal discharge.
B)a response to the binding of NE to its adrenergic receptors.
C)a fight-or-flight response.
D)achieved by sympathetic discharge.

Question 30

Which of the following is true of the preganglionic fibers of both the sympathetic and parasympathetic nervous systems? Both

A)are adrenergic.
B)secrete ACh.
C)synapse at the paravertebral ganglia.
D)are targets of beta blockers.

Question 31

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

A)Cholinergic
B)Slows heart rate
C)Effect on the heart is eliminated by a Beta₁-adrenergic blocker
D)Transmitter is ACh

Question 32

Which of the following is least related to the sympathetic nervous system?

A)Vagomimetic effect
B)Adrenergic fibers
C)Alpha and beta receptors
D)Paravertebral ganglia

Question 33

An anticholinergic or antimuscarinic effect

A)causes miosis and bradycardia.
B)is characterized by an increased heart rate and urinary retention.
C)resembles a vagomimetic response.
D)resembles a fight-or-flight response.

Question 34

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 35

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

A)Decreased heart rate
B)Difficult urination
C)Elevated blood pressure
D)Excess salivation

Question 36

Vagal discharge activates

A)muscarinic receptors.
B)alpha1-adrenergic receptors.
C)Beta₁-adrenergic receptors.
D)the paravertebral ganglia.

Question 37

Which of the following is descriptive of a panic attack?

A)Muscarinic activation
B)Vagomimetic
C)Fight or flight
D)All of the above

Question 38

A vagolytic effect

A)is a fight-or-flight response.
B)is achieved by beta blockade.
C)increases heart rate.
D)refers to muscarinic activation.

Question 39

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 40

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 41

Increased heart rate,increased blood pressure,bronchodilation,diaphoresis,and pupillary dilation (mydriasis) are consequences of

A)activation of the adrenergic receptors.
B)anticholinergic effect.
C)vagomimetic activity.
D)alpha1 blockade.

Question 42

Thoracolumbar outflow is described as

A)fight or flight.
B)vagomimetic.
C)sympathomimetic.
D)More than one of the above are true.