Question 1

Postganglionic autonomic fibers

Accepted Answer

A)  end in a single synaptic knob that releases the neurotransmitter 
B)  have numerous varicosities that simultaneously release neurotransmitter over a large area of the innervated organ rather than on single cells 
C)  innervate skeletal, smooth, and cardiac muscle 
D)  end in a single synaptic knob that releases the neurotransmitter and innervate skeletal, smooth, and cardiac muscle 
E)  have numerous varicosities that simultaneously release neurotransmitter over a large area of the innervated organ rather than on single cells and innervate skeletal, smooth, and cardiac muscle 
A)  end in a single synaptic knob that releases the neurotransmitter 
B)  have numerous varicosities that simultaneously release neurotransmitter over a large area of the innervated organ rather than on single cells 
C)  innervate skeletal, smooth, and cardiac muscle 
D)  end in a single synaptic knob that releases the neurotransmitter and innervate skeletal, smooth, and cardiac muscle 
E)  have numerous varicosities that simultaneously release neurotransmitter over a large area of the innervated organ rather than on single cells and innervate skeletal, smooth, and cardiac muscle B

Question 2

Curare

Accepted Answer

A)  strongly binds to acetylcholine receptor sites 
B)  inhibits acetylcholinesterase 
C)  is found in pesticides and military nerve gases 
D)  strongly binds to acetylcholine receptor sites and is found in pesticides and military nerve gases 
E)  all of these 
A)  strongly binds to acetylcholine receptor sites 
B)  inhibits acetylcholinesterase 
C)  is found in pesticides and military nerve gases 
D)  strongly binds to acetylcholine receptor sites and is found in pesticides and military nerve gases 
E)  all of these A

Question 3

The sympathetic nervous system is always excitatory to the organs it innervates.

Accepted Answer

A) True 
 B)False  False

Question 4

Sympathetic stimulation of the urinary bladder relaxes the activity of this organ.

Accepted Answer

A) True 
 B)False

Question 5

Nicotinic and muscarinic receptors are the two kinds of adrenergic receptors.

Accepted Answer

A) True 
 B)False

Question 6

The neuromuscular junction

Accepted Answer

A)  is the junction between a motor neuron and a skeletal muscle fiber 
B)  transmits an action potential between the nerve cell and muscle cell on a one-to-one basis 
C)  may produce either an EPSP or an IPSP on the motor end plate 
D)  is the junction between a motor neuron and a skeletal muscle fiber, and transmits an action potential between the nerve cell and muscle cell on a one-to-one basis 
E)  all of these 
A)  is the junction between a motor neuron and a skeletal muscle fiber 
B)  transmits an action potential between the nerve cell and muscle cell on a one-to-one basis 
C)  may produce either an EPSP or an IPSP on the motor end plate 
D)  is the junction between a motor neuron and a skeletal muscle fiber, and transmits an action potential between the nerve cell and muscle cell on a one-to-one basis 
E)  all of these

Question 7

Which organ is not innervated by the parasympathetic division?

Accepted Answer

A)  blood vessels 
B)  intestines 
C)  eye 
D)  liver 
E)  erectile tissues 
A)  blood vessels 
B)  intestines 
C)  eye 
D)  liver 
E)  erectile tissues

Question 8

The autonomic nervous system is

Accepted Answer

A)  part of the somatic nervous system 
B)  the involuntary branch of the peripheral nervous system's efferent division 
C)  part of the central nervous system 
D)  the involuntary branch of the peripheral nervous system's efferent division and part of the somatic nervous system 
E)  all of these 
A)  part of the somatic nervous system 
B)  the involuntary branch of the peripheral nervous system's efferent division 
C)  part of the central nervous system 
D)  the involuntary branch of the peripheral nervous system's efferent division and part of the somatic nervous system 
E)  all of these

Question 9

The autonomic and somatic nervous systems are part of the efferent nervous system.

Accepted Answer

A) True 
 B)False

Question 10

Botulism is caused by a toxin from bacteria in the species

Accepted Answer

A)  Clostridium 
B)  Escherichia 
C)  Salmonella 
D)  Staphylococcus 
E)  Streptococcus 
A)  Clostridium 
B)  Escherichia 
C)  Salmonella 
D)  Staphylococcus 
E)  Streptococcus

Question 11

Which of the following does not characterize the sympathetic nervous system?

Accepted Answer

A)  It promotes responses that prepare the body for strenuous physical activity. 
B)  It has some afferent fibers. 
C)  Most of its postganglionic neurons are adrenergic. 
D)  Its effects may be excitatory or inhibitory. 
E)  It has some afferent fibers and most of its postganglionic neurons are adrenergic. 
A)  It promotes responses that prepare the body for strenuous physical activity. 
B)  It has some afferent fibers. 
C)  Most of its postganglionic neurons are adrenergic. 
D)  Its effects may be excitatory or inhibitory. 
E)  It has some afferent fibers and most of its postganglionic neurons are adrenergic.

Question 12

Binding of ACh with receptor sites on the motor end plate opens chemical messenger-gated cation channels in the motor end plate, bringing about depolarization of the motor end plate.

Accepted Answer

A) True 
 B)False

Question 13

Atropine ____ the effect of acetylcholine at ____ receptors and ____ ____ receptors.

Accepted Answer

A)  blocks; muscarinic; does not affect; nicotinic 
B)  enhances; muscarinic; does not affect; nicotinic 
C)  blocks; nicotinic; does not affect; muscarinic 
D)  enhances; nicotinic; does not affect; muscarinic 
E)  blocks; muscarinic; enhances; nicotinic 
A)  blocks; muscarinic; does not affect; nicotinic 
B)  enhances; muscarinic; does not affect; nicotinic 
C)  blocks; nicotinic; does not affect; muscarinic 
D)  enhances; nicotinic; does not affect; muscarinic 
E)  blocks; muscarinic; enhances; nicotinic

Question 14

Complete each of the following statments.
Binding of ____________________ to nicotinic receptors is always excitatory.

Accepted Answer

The answer of Complete each of the following statments.
Binding of...

Question 15

An EPP is similar to an EPSP, except that the magnitude of an EPSP is much larger.

Accepted Answer

A) True 
 B)False

Question 16

Only terminals of autonomic nerve fibers and motor neurons end in a single, enlarged knoblike structure that releases neurotransmitter.

Accepted Answer

A) True 
 B)False

Question 17

Complete each of the following statments.
Alpha and beta are two kinds of ____________________ receptors.

Accepted Answer

The answer of Complete each of the following statments.
Alpha and...

Question 18

Which type of receptor binds norepinephrine on cardiac muscle, thus increasing cardiac activity?

Accepted Answer

A)  cholinergic 
B)  nicotinic 
C)  alpha 
D)  beta-1 
E)  beta-2 
A)  cholinergic 
B)  nicotinic 
C)  alpha 
D)  beta-1 
E)  beta-2

Question 19

Sympathetic preganglionic fibers originate in the thoracic and lumbar segments of the spinal cord.

Accepted Answer

A) True 
 B)False

Question 20

Complete each of the following statments.
The two divisions of the autonomic nervous system are the ____________________ nervous system, which dominates in fight-or-flight situations, and the ____________________ nervous system, which dominates in quiet, relaxed situations.

Accepted Answer

sympatheti

Exam 7: The Peripheral Nervous System: Efferent Division

Postganglionic autonomic fibers

Curare

The sympathetic nervous system is always excitatory to the organs it innervates.

Sympathetic stimulation of the urinary bladder relaxes the activity of this organ.

Nicotinic and muscarinic receptors are the two kinds of adrenergic receptors.

The neuromuscular junction

Which organ is not innervated by the parasympathetic division?

The autonomic nervous system is

The autonomic and somatic nervous systems are part of the efferent nervous system.

Botulism is caused by a toxin from bacteria in the species

Which of the following does not characterize the sympathetic nervous system?

Binding of ACh with receptor sites on the motor end plate opens chemical messenger-gated cation channels in the motor end plate, bringing about depolarization of the motor end plate.

Atropine ____ the effect of acetylcholine at ____ receptors and ____ ____ receptors.

Complete each of the following statments. Binding of ____________________ to nicotinic receptors is always excitatory.

An EPP is similar to an EPSP, except that the magnitude of an EPSP is much larger.

Only terminals of autonomic nerve fibers and motor neurons end in a single, enlarged knoblike structure that releases neurotransmitter.

Complete each of the following statments. Alpha and beta are two kinds of ____________________ receptors.

Which type of receptor binds norepinephrine on cardiac muscle, thus increasing cardiac activity?

Sympathetic preganglionic fibers originate in the thoracic and lumbar segments of the spinal cord.

Complete each of the following statments. The two divisions of the autonomic nervous system are the ____________________ nervous system, which dominates in fight-or-flight situations, and the ____________________ nervous system, which dominates in quiet, relaxed situations.

Introduction to Physiology and Homeostasis

Cell Physiology

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

A--The Central Nervous System

B--The Central Nervous System

A--The Peripheral Nervous System: Afferent Division; Special Senses

B--The Peripheral Nervous System: Afferent Division; Special Senses

A--Muscle Physiology

B--Muscle Physiology

A--Cardiac Physiology

B--Cardiac Physiology

The Blood Vessels and Blood Pressure

The Blood

Body Defenses

A--The Respiratory System

B--The Respiratory System

A--The Urinary System

B--The Urinary System

A--Fluid and Acid-Base Balance

B--Fluid and Acid-Base Balance

A--The Digestive System

B--The Digestive System

Energy Balance and Temperature Regulation

A--Principles of Endocrinology: the Central Endocrine Glands

B--Principles of Endocrinology: the Central Endocrine Glands

A--The Peripheral Endocrine Glands

B--The Peripheral Endocrine Glands

A--The Reproductive System

B--The Reproductive System

Filters

Atropine the effect of acetylcholine at receptors and receptors.

Complete each of the following statments. The two divisions of the autonomic nervous system are the nervous system, which dominates in fight-or-flight situations, and the nervous system, which dominates in quiet, relaxed situations.