Question 1

Action potentials travel along the

Accepted Answer

A)   axon membrane.
B)   dendrite membrane.
C)   cell body.
D)   myelin.E) None of the above
F) B) and C)

Question 2

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

Accepted Answer

A)   astrocytes
B)   microglial cells
C)   Schwann cells
D)   oligodendrocytesE) A) and B)
F) A) and C)

Question 3

________ is the term for the previously held belief that fully differentiated neurons could not divide.

Accepted Answer

The no-new...

Question 4

________ are chemicals that control the growth of newly forming neurons.

Accepted Answer

The answer of ________ are chemicals that control the growth...

Question 5

Figure 12.1
Use the diagram pictured above to answer the following questions.
-Identify the letter that indicates the region of a neuron with a name that means "little hill."

Accepted Answer

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

Question 6

Regeneration of peripheral axons requires

Accepted Answer

A)   construction of a collateral that branches from the point of damage.
B)   deposition of neurofilaments to bridge the gap between the original axon fragments.
C)   formation of a tube by Schwann cells to guide growth.
D)   migration of neural stem cells from the hippocampus.E) A) and B)
F) All of the above

Question 7

A neuron is a collection of nerve fibers in the PNS.

Accepted Answer

A) True 
 B)False

Question 8

Some small neurons in the CNS have no axon, only dendrites, and are

Accepted Answer

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

Question 9

A man walking barefoot stepped on a piece of glass. His foot jerked upward in which type of reflex?

Accepted Answer

A)   somatic, polysynaptic withdrawal reflex
B)   visceral, monosynaptic stretch reflex
C)   somatic, monosynaptic withdrawal reflex
D)   visceral, polysynaptic withdrawal reflexE) A) and C)
F) None of the above

Question 10

The chemical substance that is released at axon terminals is called a

Accepted Answer

A)   hormone.
B)   neurotransmitter.
C)   synaptic vesicle.
D)   Nissl body.E) B) and C)
F) A) and D)

Question 11

Figure 12.2
Use the diagrams above to answer the following questions.
-Identify which diagram represents cells that produce and circulate cerebrospinal fluid.

Accepted Answer

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

Question 12

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

Accepted Answer

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

Question 13

Figure 12.2
Use the diagrams above to answer the following questions.
-Identify which letter represents an oligodendrocyte.

Accepted Answer

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

Question 14

During embryo development, neurons that make "bad" connections

Accepted Answer

A)   are inhibited by chemicals released from astrocytes.
B)   are turned off by inhibitory synapses in reverberating circuits.
C)   develop collaterals that seek out appropriate target cells.
D)   die by apoptosis.E) A) and B)
F) A) and D)

Question 15

Which cells are the macrophages of the CNS?

Accepted Answer

A)   ependymal cells
B)   microglial cells
C)   satellite cells
D)   Schwann cellsE) A) and C)
F) B) and C)

Question 16

Vesicles containing neurotransmitters are located in

Accepted Answer

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

Question 17

All of the neuron's organelles are localized to the cell body.

Accepted Answer

A) True 
 B)False

Question 18

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

Accepted Answer

A)   astrocytes
B)   microglia
C)   satellite cells
D)   Schwann cellsE) A) and D)
F) A) and C)

Question 19

White matter is white in color because of ________.

Accepted Answer

The answer of White matter is white in color because...

Question 20

The complexity of the CNS can be attributed to

Accepted Answer

A)   the large number of sensory neurons carrying information to the CNS.
B)   the different types of receptors outside the CNS.
C)   the large number of interneurons in the CNS.
D)   the large number of motor neurons leaving the CNS.E) C) and D)
F) All of the above

Exam 12: Fundamentals of the Nervous System and Nervous Tissue

Figure 12.1 Use the diagram pictured above to answer the following questions. -Identify the letter that indicates the region of a neuron with a name that means "little hill."

Correct AnswerverifiedShow Answer

The complexity of the CNS can be attributed to

Correct AnswerverifiedShow Answer

A man walking barefoot stepped on a piece of glass. His foot jerked upward in which type of reflex?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

A neuron is a collection of nerve fibers in the PNS.

Correct AnswerverifiedShow Answer

All of the neuron's organelles are localized to the cell body.

Correct AnswerverifiedShow Answer

Action potentials travel along the

Correct AnswerverifiedShow Answer

During embryo development, neurons that make "bad" connections

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which cells are the macrophages of the CNS?

Correct AnswerverifiedShow Answer

Figure 12.2 Use the diagrams above to answer the following questions. -Identify which letter represents an oligodendrocyte.

Correct AnswerverifiedShow Answer

Some small neurons in the CNS have no axon, only dendrites, and are

Correct AnswerverifiedShow Answer

Regeneration of peripheral axons requires

Correct AnswerverifiedShow Answer

Figure 12.2 Use the diagrams above to answer the following questions. -Identify which diagram represents cells that produce and circulate cerebrospinal fluid.

Correct AnswerverifiedShow Answer

White matter is white in color because of ________.

Correct AnswerverifiedShow Answer

________ is the term for the previously held belief that fully differentiated neurons could not divide.

Correct AnswerverifiedThe no-new...View AnswerShow Answer

The chemical substance that is released at axon terminals is called a

Correct AnswerverifiedShow Answer

________ are chemicals that control the growth of newly forming neurons.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Vesicles containing neurotransmitters are located in

Correct AnswerverifiedShow Answer

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The no-new...
View Answer

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