Deck 3: Pharmacology of the Autonomic Nervous System

Question 1

The system responsible for a rise in heart rate and blood pressure when your instructor announces a surprise quiz is the:

A)Central.
B)Parasympathetic.
C)Somatic.
D)Sympathetic.

Answer 1

Sympathetic.

Question 2

Receptors that bind with norepinephrine are referred to as: I.Adrenergic.
II)Alpha.
III)Beta.
IV)Muscarinic.

A)I and II
B)I,II,and III
C)I and IV
D)II,III,and IV

Answer 2

I,II,and III

Question 3

The primary action of neurotransmitters takes place at the:

A)Neuroeffector site.
B)Presynaptic neuron.
C)Postsynaptic neuron.
D)Nerve axon.

Answer 3

Neuroeffector site.

Question 4

All of the following explain the function of the somatic nervous system except:

A)Skeletal muscle movement.
B)Conduction of sensory information.
C)Involuntary control.
D)Voluntary movement.

Question 5

Which of the following cannot be considered part of a two-junction system?

A)The somatic nervous system
B)The norepinephrine neurotransmitter
C)Postganglia
D)The autonomic nervous system

Question 6

If you apply the alpha-adrenergic agent phenylephrine topically,which of the following occurs?

A)Swollen vessels constrict.
B)Blood pressure decreases.
C)Heart rate decreases.
D)Respiratory rate increases.

Question 7

The name of the parasympathetic neurotransmitter is:

A)Acetylcholine.
B)Cholinesterase.
C)Norepinephrine.
D)Adrenalin.

Question 8

The primary action of sympathomimetics is to:

A)Stimulate acetylcholine.
B)Block acetylcholine.
C)Stimulate norepinephrine.
D)Block norepinephrine.

Question 9

Bronchodilation is achieved by using which of the following classifications of drugs? I.Parasympatholytic
II)Sympatholytics
III)Adrenergic agonists

A)I and II
B)II and III
C)I and III
D)I,II,and III

Question 10

Stimulation of dopamine receptors causes which of the following?

A)Increased heart rate
B)Relaxation of renal arteries
C)Constriction of peripheral blood vessels
D)Bronchodilation

Question 11

Which statement best explains the control of the parasympathetic and sympathetic systems?

A)The parasympathetic and sympathetic systems work independently of each other to regulate autonomic control.
B)The sympathetic system is in primary autonomic control.
C)The parasympathetic and sympathetic systems work in a coordinated,opposite fashion to maintain balance.
D)The parasympathetic system is the dominant controller.

Question 12

The somatic nervous system is responsible for:

A)Skeletal muscle movement.
B)Cardiac muscle control.
C)The digestive process.
D)Involuntary muscle control.

Question 13

The peripheral nervous system is composed of all the following except:

A)Afferent and efferent nerves.
B)Brain and spinal nerves.
C)Sympathetic and parasympathetic branches.
D)The somatic and autonomic nervous systems.

Question 14

Norepinephrine is found at the terminal end of which of the following nerve fibers?

A)Preganglionic junction of the sympathetic system
B)Postganglionic junction of the sympathetic system
C)Preganglionic junction of the parasympathetic system
D)Postganglionic junction of the parasympathetic system

Question 15

Drugs that antagonize the sympathetic response would be classified as all of the following except:

A)Antiadrenergics.
B)Sympatholytics.
C)Beta blockers.
D)Muscarinics.

Question 16

A physician has just written an order for atropine to be administered to a patient for which you are caring.This parasympatholytic drug would cause all the following except:

A)Bronchodilation.
B)Dry secretions.
C)Bradycardia.
D)Vasoconstriction.

Question 17

The ANS regulates all the following body functions except:

A)Digestion.
B)Skeletal muscle movement.
C)Cardiac muscle control.
D)Blood vessel constriction.

Question 18

Receptors that bind with acetylcholine can be referred to as: I.Cholinergic.
II)Adrenergic.
III)Muscarinic.
IV)Nicotinic.

A)I and II
B)I and III
C)I,II,and III
D)I,III,and IV

Question 19

In a situation of stress,any of the following receptors may be stimulated except:

A)Adrenergic.
B)Muscarinic.
C)Nicotinic.
D)Beta.

Question 20

The sympathetic system causes which of the following effects?

A)Bronchoconstriction
B)Increased digestion
C)Decreased heart rate
D)Bladder relaxation

Question 21

The CNS is comprised of the ____________ and the ____________.

Question 22

Drugs that antagonize or block the parasympathetic response are referred to as:

A)Antiadrenergics.
B)Cholinergics.
C)Parasympathomimetics.
D)Parasympatholytics.

Question 23

______ 9.Beta blockers are classified as sympatholytics.

Question 24

______ 7.Acetylcholine binds with muscarinic receptors in the parasympathetic nervous system.

Question 25

When a drug stimulates a receptor,it can be classified as all the following except:

A)Direct acting.
B)An agonist.
C)Sympathomimetic.
D)Parasympatholytic.

Question 26

______ 4.Nicotinic receptors are found in both the parasympathetic and sympathetic nervous systems.

Question 27

Elimination of norepinephrine at the synaptic cleft is accomplished by which of the following mechanisms? I.Reuptake
II)Metabolization by AChE
III)Metabolization by MAO
IV)Metabolization by COMT

A)I and II
B)I and III
C)I,II,and III
D)I,III,and IV

Question 28

______ 6.Acetylcholine is inactivated by the enzyme monoamine oxidase (MAO).

Question 29

______ 5.The neurotransmitter in the postsynaptic junction of the parasympathetic nervous system is norepinephrine.

Question 30

Beta₂ stimulation results in:

A)Bronchospasm.
B)Bronchodilation.
C)Vasoconstriction.
D)Vasodilation.

Question 31

Sympathomimetic drugs include all of the following except:

A)Isoproterenol.
B)Propranolol.
C)Albuterol.
D)Phenylephrine. TRUE/FALSE
Write 'T' if the statement is true and 'F' if the statement is false.

Question 32

______ 10.Adrenergic receptors are found primarily in the smooth muscle of blood vessels,cardiac muscle,and the airways.
FILL-IN-THE-BLANK
Write the word or phrase that best completes each statement.

Question 33

Adrenergic agents that are considered catecholamines include all the following except:

A)Dobutamine.
B)Epinephrine.
C)Phenylephrine.
D)Dopamine.

Question 34

______ 1.Efferent neurons convey impulses from the brain along motor pathways to smooth muscle and glands.

Question 35

______ 8.Once released,norepinephrine is immediately broken down by the enzyme monoamine oxidase (MAO).

Question 36

A drug that is classified as a beta blocker would cause which of the following effects?

A)Vasodilation
B)Increased heart rate
C)Increased respirations
D)Bronchoconstriction

Question 37

______ 2.Stimulation of a resting nerve occurs when a chemical neurotransmitter travels along the nerve fiber.

Question 38

______ 3.The somatic nervous system involves nerve transmission from a presynaptic neuron to a postsynaptic neuron.

Question 39

Beta₁ stimulation mainly affects the:

A)Heart.
B)Blood vessels.
C)Airways.
D)Skeleton and muscles.

Question 40

Agents that inhibit the enzyme acetylcholinesterase cause which of the following effects on the PNS?

A)Bradycardia and hypotension
B)Overstimulation of the sympathetic branch of the PNS
C)None
D)Bronchodilation

Question 41

The general effect of sympathomimetic drugs is to ________________ the effects of the sympathetic system.

Question 42

Information sent from the brain travels along motor pathways known as ____________.

Question 43

What ANS division needs to be blocked to cause bronchial smooth muscle dilation?

Question 44

The action of norepinephrine is terminated by a process called ________________.

Question 45

Sympathomimetic drugs are used for ________________ or ________________.

Question 46

What ANS division needs to be stimulated to cause bronchial smooth muscle dilation?

Question 47

How is norepinephrine regulated at postsynaptic adrenergic receptors?

Question 48

How do muscarinic and nicotinic receptor sites differ?

Question 49

The general effect of sympatholytic drugs is to ________________ the effects of the sympathetic system.

Question 50

The branch of the ANS responsible for maintaining a homeostatic environment is the ____________ branch.

Question 51

A sympatholytic drug would cause a/an ____________in heart rate and cause the bronchial airways to ____________.

Question 52

Drugs that antagonize the sympathetic response are known as ________________ or ________________.

Question 53

A parasympatholytic drug would cause a/an ____________in heart rate and cause the bronchial airways to ____________.

Question 54

Catecholamines are adrenergic agents such as ________________.

Question 55

The branch of the ANS responsible for fight-or-flight reactions is the ________________ branch.

Question 56

The type of adrenergic receptor found in the smooth muscle of airways is ________________.

Question 57

What are adrenergic blockers?

Question 58

The flow of information toward the brain is referred to as "sensory," or ________________,input.

Question 59

The action of the parasympathetic neurotransmitter acetylcholine is terminated by ________________.