Question 1

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

Accepted Answer

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

Question 2

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

Accepted Answer

A)  Cholinergic 
B)  Slows heart rate 
C)  Effect on the heart is eliminated by a beta1-adrenergic blocker 
D)  Transmitter is ACh 
A)  Cholinergic 
B)  Slows heart rate 
C)  Effect on the heart is eliminated by a beta1-adrenergic blocker 
D)  Transmitter is ACh

Question 3

Vasomotor tone is

Accepted Answer

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. 
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 4

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

Accepted Answer

A)  Enzyme that degrades norepinephrine 
B)  Found within all cholinergic nerve terminals 
C)  Associated with sympathetic activity 
D)  Associated with adrenergic fibers 
A)  Enzyme that degrades norepinephrine 
B)  Found within all cholinergic nerve terminals 
C)  Associated with sympathetic activity 
D)  Associated with adrenergic fibers

Question 5

Sympathetic and parasympathetic nerves

Accepted Answer

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

Question 6

The effects of adrenal medullary secretion most resemble

Accepted Answer

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

Question 7

What is another term for thoracolumbar outflow?

Accepted Answer

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

Question 8

A beta₁-adrenergic agonist

Accepted Answer

A)  increases heart rate. 
B)  causes the release of acetylcholine. 
C)  blocks the effects of norepinephrine at its receptor site. 
D)  lowers blood pressure. 
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 9

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

Accepted Answer

A)  Muscarinic and nicotinic 
B)  Alpha and beta 
C)  Sympathetic and parasympathetic 
D)  Beta1 and beta2 
A)  Muscarinic and nicotinic 
B)  Alpha and beta 
C)  Sympathetic and parasympathetic 
D)  Beta1 and beta2

Question 10

Which of the following is least descriptive of thoracolumbar outflow?

Accepted Answer

A)  Fight or flight 
B)  Muscarinic and nicotinic receptors 
C)  Sympathetic nervous system 
D)  Paravertebral ganglia 
A)  Fight or flight 
B)  Muscarinic and nicotinic receptors 
C)  Sympathetic nervous system 
D)  Paravertebral ganglia

Question 11

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

Accepted Answer

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

Question 12

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

Accepted Answer

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

Question 13

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

Accepted Answer

A)  Slowed heart rate 
B)  Increased blood pressure 
C)  Dilation of the pupil of the eye 
D)  Stronger contraction of the heart 
A)  Slowed heart rate 
B)  Increased blood pressure 
C)  Dilation of the pupil of the eye 
D)  Stronger contraction of the heart

Question 14

Beta adrenergic blockade

Accepted Answer

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. 
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 15

Alpha and beta receptors are

Accepted Answer

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

Question 16

Vagal discharge activates

Accepted Answer

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

Question 17

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

Accepted Answer

A)  Muscarinic antagonist 
B)  Beta1-adrenergic blocker 
C)  Vagomimetic drug 
D)  Alpha1-adrenergic agonist 
A)  Muscarinic antagonist 
B)  Beta1-adrenergic blocker 
C)  Vagomimetic drug 
D)  Alpha1-adrenergic agonist

Question 18

Which group is incorrect?

Accepted Answer

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 
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 19

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

Accepted Answer

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

Question 20

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

Accepted Answer

A)  Pyramidal tracts 
B)  Sympathetic nervous system 
C)  Craniosacral outflow 
D)  Rapid heart rate, palpitations, sweating 
A)  Pyramidal tracts 
B)  Sympathetic nervous system 
C)  Craniosacral outflow 
D)  Rapid heart rate, palpitations, sweating

Exam 12: Autonomic Nervous System

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

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

Vasomotor tone is

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

Sympathetic and parasympathetic nerves

The effects of adrenal medullary secretion most resemble

What is another term for thoracolumbar outflow?

A beta₁-adrenergic agonist

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

Which of the following is least descriptive of thoracolumbar outflow?

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

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

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

Beta adrenergic blockade

Alpha and beta receptors are

Vagal discharge activates

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

Which group is incorrect?

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

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

Introduction to the Human Body

Basic Chemistry

Cells

Cell Metabolism

Microbiology Basics

Tissues and Membranes

Integumentary System and Body Temperature

Skeletal System

Muscular System

Nervous System: Nervous Tissue and Brain

Nervous System: Spinal Cord and Peripheral Nerves

Sensory System

Endocrine System

Blood

Anatomy of the Heart

Function of the Heart

Anatomy of the Blood Vessels

Functions of the Blood Vessels

Lymphatic System

Immune System

Respiratory System

Digestive System

Urinary System

Water, Electrolyte, and Acid-Base Balance

Reproductive Systems

Human Development and Heredity

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