Question 1

Which portion of the brain contains the midbrain,pons,and medulla oblongata?

Accepted Answer

A)   Cerebrum
B)   Diencephalon
C)   Cerebellum
D)   BrainstemE) C) and D)
F) B) and C)

Question 2

A patient who is experiencing severe pain down the back of the leg most likely has an injury to a nerve in which plexus?

Accepted Answer

A)   Cervical
B)   Lumbar
C)   Sacral
D)   BrachialE) A) and B)
F) All of the above

Question 3

Gray matter primarily contains

Accepted Answer

A)   neuron cell bodies.
B)   myelinated fibers.
C)   Schwann cells.
D)   bundles of axons.E) B) and C)
F) C) and D)

Question 4

Cell bodies of the dorsal neurons are clustered in a knotlike structure called a ____________________.

Accepted Answer

ganglion

Question 5

How many pairs of spinal nerves connect to the spinal cord?

Accepted Answer

A)   38
B)   31
C)   12
D)   28E) A) and D)
F) A) and C) B

Question 6

Which nerve stimulates the diaphragm for breathing?

Accepted Answer

A)   Femoral
B)   Median
C)   Sciatic
D)   PhrenicE) A) and C)
F) A) and D)

Question 7

In the peripheral nervous system,the myelin sheath is formed when ____________________ wrap themselves around the axon.

Accepted Answer

The answer of In the peripheral nervous system,the myelin sheath...

Question 8

Where do most sympathetic ganglia exist?

Accepted Answer

A)   In or near target organs
B)   In chains within the spinal cord
C)   In clusters within the brain
D)   In chains along both sides of the spinal cordE) B) and C)
F) C) and D)

Question 9

When stimulated,channels on a resting neuron's membrane open and ____________________ from outside the membrane rushes into the cell,giving the cell's interior a ____________________ charge.

Accepted Answer

The answer of When stimulated,channels on a resting neuron's membrane...

Question 10

Fibers that secrete acetylcholine are called ____________________ fibers.

Accepted Answer

The answer of Fibers that secrete acetylcholine are called ____________________...

Question 11

What structural feature of the sympathetic nervous system allows it to cause the "fight-or-flight" response to be both immediate and widespread?

Accepted Answer

A)   The fibers that extend to target organs are unmyelinated.
B)   Sympathetic neurons begin in the spinal cord.
C)   The fibers that lead to ganglia are myelinated.
D)   Preganglionic neurons synapse with multiple postganglionic neurons.E) C) and D)
F) A) and D) D

Question 12

Nerve fibers are gathered together in bundles called ____________________.

Accepted Answer

The answer of Nerve fibers are gathered together in bundles...

Question 13

Which statement about nerve impulse conduction in myelinated neurons is true?

Accepted Answer

A)   Myelin facilitates the free movement of ions across the cell membrane.
B)   The action potential occurs only at gaps in the myelin.
C)   The electrical current leaps over the myelin sheath,jumping from one node of Ranvier to the next.
D)   The electrical current passes through the myelin.E) B) and D)
F) B) and C)

Question 14

The division of the nervous system that carries signals from nerve endings to the central nervous system is the

Accepted Answer

A)   sensory (afferent) division.
B)   motor (efferent) division.
C)   sympathetic division.
D)   parasympathetic division.E) B) and D)
F) All of the above

Question 15

A patient is admitted to the hospital with paralysis on the right side of the body.Magnetic resonance imaging reveals that he has suffered a stroke on the left side of his brain.What is the most likely explanation for the location of his symptoms?

Accepted Answer

A)   A stroke on the left side of the brain would affect corticospinal tracts responsible for movement.
B)   A stroke on the left side of the brain would affect motor signals being sent to the right side of the body.
C)   A stroke on the left side of the brain would affect the area responsible for movement.
D)   There is no logical explanation because a stroke on the left side of the brain would affect movement on the left side of the body.E) A) and D)
F) A) and C)

Question 16

Sometimes called the "emotional brain," the ____________________ is the seat of emotion and learning.

Accepted Answer

The answer of Sometimes called the "emotional brain," the ____________________...

Question 17

A nerve consists of many ____________________ encased in connective tissue.

Accepted Answer

The answer of A nerve consists of many ____________________ encased...

Question 18

A massive influx of sodium into a nerve cell causes ____________________.

Accepted Answer

The answer of A massive influx of sodium into a...

Question 19

When you touch something hot,the type of neurons that send impulses allowing you to withdraw your hand are

Accepted Answer

A)   afferent neurons.
B)   efferent neurons.
C)   interneurons.
D)   neuroglia.E) C) and D)
F) A) and D)

Question 20

Gray matter is found on the ____________________ of the brain,an area called the ____________________.

Accepted Answer

The answer of Gray matter is found on the ____________________...

Exam 10: Nervous System

Which portion of the brain contains the midbrain,pons,and medulla oblongata?

Correct AnswerverifiedShow Answer

A patient who is experiencing severe pain down the back of the leg most likely has an injury to a nerve in which plexus?

Correct AnswerverifiedShow Answer

Gray matter primarily contains

Correct AnswerverifiedShow Answer

Cell bodies of the dorsal neurons are clustered in a knotlike structure called a ____________________.

Correct Answerverifiedganglion

How many pairs of spinal nerves connect to the spinal cord?

Correct AnswerverifiedB

Which nerve stimulates the diaphragm for breathing?

Correct AnswerverifiedShow Answer

In the peripheral nervous system,the myelin sheath is formed when ____________________ wrap themselves around the axon.

Correct AnswerverifiedShow Answer

Where do most sympathetic ganglia exist?

Correct AnswerverifiedShow Answer

When stimulated,channels on a resting neuron's membrane open and ____________________ from outside the membrane rushes into the cell,giving the cell's interior a ____________________ charge.

Correct AnswerverifiedShow Answer

Fibers that secrete acetylcholine are called ____________________ fibers.

Correct AnswerverifiedShow Answer

What structural feature of the sympathetic nervous system allows it to cause the "fight-or-flight" response to be both immediate and widespread?

Correct AnswerverifiedD

Nerve fibers are gathered together in bundles called ____________________.

Correct AnswerverifiedShow Answer

Which statement about nerve impulse conduction in myelinated neurons is true?

Correct AnswerverifiedShow Answer

The division of the nervous system that carries signals from nerve endings to the central nervous system is the

Correct AnswerverifiedShow Answer

A patient is admitted to the hospital with paralysis on the right side of the body.Magnetic resonance imaging reveals that he has suffered a stroke on the left side of his brain.What is the most likely explanation for the location of his symptoms?

Correct AnswerverifiedShow Answer

Sometimes called the "emotional brain," the ____________________ is the seat of emotion and learning.

Correct AnswerverifiedShow Answer

A nerve consists of many ____________________ encased in connective tissue.

Correct AnswerverifiedShow Answer

A massive influx of sodium into a nerve cell causes ____________________.

Correct AnswerverifiedShow Answer

When you touch something hot,the type of neurons that send impulses allowing you to withdraw your hand are

Correct AnswerverifiedShow Answer

Gray matter is found on the ____________________ of the brain,an area called the ____________________.

Correct AnswerverifiedShow Answer

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ganglion

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B

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When stimulated,channels on a resting neuron's membrane open and from outside the membrane rushes into the cell,giving the cell's interior a charge.

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D

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Gray matter is found on the of the brain,an area called the .

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