Question 1

Action potentials travel along the

Accepted Answer

A)   dendrite membrane.
B)   axon membrane.
C)   cell body.
D)   myelin.E) C) and D)
F) B) and C)

Question 2

A monosynaptic reflex arc is an example of

Accepted Answer

A)   serial processing.
B)   a converging circuit.
C)   parallel processing.
D)   a reverberating circuit.E) B) and C)
F) A) and B)

Question 3

Figure 12.1
Use the diagram pictured above to answer the following questions.
-Identify the letter that indicates the region of a neuron where neurotransmitters are released.

Accepted Answer

A)   A
B)   B
C)   C
D)   D
E)   EF) D) and E)
G) None of the above

Question 4

Figure 12.1
Use the diagram pictured above to answer the following questions.
-Identify the letter that indicates the gaps between Schwann cells that are known as myelin sheath gaps (nodes of Ranvier) .

Accepted Answer

A)   A
B)   B
C)   C
D)   D
E)   EF) A) and E)
G) A) and C)

Question 5

Neurofibrils

Accepted Answer

A)   help circulate cerebrospinal fluid.
B)   receive incoming stimuli and pass the signal toward the cell body.
C)   prevent the neuron from being pulled apart when subjected to tensile forces.
D)   form synapses with axons of postsynaptic neurons.E) A) and B)
F) All of the above

Question 6

The entire nerve is surrounded by a tough fibrous sheath called the

Accepted Answer

A)   ectoneurium.
B)   epineurium.
C)   perineurium.
D)   endoneurium.E) All of the above
F) A) and C)

Question 7

The majority of neurons in the body are

Accepted Answer

A)   unipolar.
B)   pseudounipolar.
C)   bipolar.
D)   multipolar.E) A) and B)
F) A) and D)

Question 8

Describe the levels of layers of myelin and connective tissue surrounding a nerve.

Accepted Answer

The axon is myelinated by Schwann cells,...

Question 9

Any long axon is called a nerve fiber.

Accepted Answer

A) True 
 B)False

Question 10

Regeneration of peripheral axons requires

Accepted Answer

A)   formation of a tube by Schwann cells to guide growth.
B)   deposition of neurofilaments to bridge the gap between the original axon fragments.
C)   construction of a collateral that branches from the point of damage.
D)   migration of neural stem cells from the hippocampus.E) A) and B)
F) None of the above

Question 11

Which of the following statements about an axon is false?

Accepted Answer

A)   It has branches.
B)   It has a uniform diameter.
C)   It carries nerve impulses toward the cell body.
D)   It is also referred to as a nerve fiber.E) None of the above
F) B) and C)

Question 12

Vesicles containing neurotransmitters are located in

Accepted Answer

A)   the nodes of Ranvier.
B)   axon terminals.
C)   a synaptic cleft.
D)   the postsynaptic region of dendrites.E) A) and B)
F) B) and C)

Question 13

Which cells provide the myelin sheath for neurons in the PNS?

Accepted Answer

A)   microglial cells
B)   oligodendrocytes
C)   astrocytes
D)   Schwann cellsE) B) and C)
F) A) and B)

Question 14

Ganglia represent

Accepted Answer

A)   groups of dendrites.
B)   groups of neuron cell bodies.
C)   groups of synapses.
D)   groups of axons.E) A) and D)
F) A) and B)

Question 15

The somatic motor subdivision of the peripheral nervous system is considered to be an involuntary nervous system.

Accepted Answer

A) True 
 B)False

Question 16

These glial cells surround the cell bodies of sensory neurons within ganglia of the PNS.

Accepted Answer

A)   Schwann cells
B)   satellite cells
C)   astrocytes
D)   microgliaE) A) and B)
F) B) and C)

Question 17

Which relatively rare type of neuron has two processes extending from opposite sides of the cell body?

Accepted Answer

A)   multipolar
B)   pseudounipolar
C)   bipolar
D)   unipolarE) C) and D)
F) B) and D)

Question 18

Sensory neurons arise primarily from the

Accepted Answer

A)   neural tube.
B)   alar plate.
C)   basal plate.
D)   neural crest.E) None of the above
F) C) and D)

Question 19

This region of a neuron contains chromatophilic substance or Nissl bodies.

Accepted Answer

A)   synapse
B)   axon terminal
C)   axon
D)   cell body
E)   dendriteF) A) and D)
G) C) and D)

Question 20

Name four characteristics that distinguish neuroglial cells from neurons.

Accepted Answer

Glial cells are smaller, they ...

Exam 12: Fundamentals of the Nervous System and Nervous Tissue

Name four characteristics that distinguish neuroglial cells from neurons.

Correct AnswerverifiedGlial cells are smaller, they ...View AnswerShow Answer

The somatic motor subdivision of the peripheral nervous system is considered to be an involuntary nervous system.

Correct AnswerverifiedShow Answer

The entire nerve is surrounded by a tough fibrous sheath called the

Correct AnswerverifiedShow Answer

Which cells provide the myelin sheath for neurons in the PNS?

Correct AnswerverifiedShow Answer

These glial cells surround the cell bodies of sensory neurons within ganglia of the PNS.

Correct AnswerverifiedShow Answer

Figure 12.1 Use the diagram pictured above to answer the following questions. -Identify the letter that indicates the region of a neuron where neurotransmitters are released.

Correct AnswerverifiedShow Answer

Which of the following statements about an axon is false?

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Action potentials travel along the

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Vesicles containing neurotransmitters are located in

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Neurofibrils

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Regeneration of peripheral axons requires

Correct AnswerverifiedShow Answer

The majority of neurons in the body are

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Ganglia represent

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Which relatively rare type of neuron has two processes extending from opposite sides of the cell body?

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A monosynaptic reflex arc is an example of

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Figure 12.1 Use the diagram pictured above to answer the following questions. -Identify the letter that indicates the gaps between Schwann cells that are known as myelin sheath gaps (nodes of Ranvier) .

Correct AnswerverifiedShow Answer

This region of a neuron contains chromatophilic substance or Nissl bodies.

Correct AnswerverifiedShow Answer

Describe the levels of layers of myelin and connective tissue surrounding a nerve.

Correct AnswerverifiedThe axon is myelinated by Schwann cells,...View AnswerShow Answer

Any long axon is called a nerve fiber.

Correct AnswerverifiedShow Answer

Sensory neurons arise primarily from the

Correct AnswerverifiedShow Answer

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Glial cells are smaller, they ...
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The axon is myelinated by Schwann cells,...
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Correct Answer
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