Question 1

Vesicles and glycoproteins required at the synapse are moved down a nerve fiber by ________ axonal transport.

Accepted Answer

A)   fast
B)   slowC) A) and B)
D) undefined

Question 2

Contrast chemically gated and voltage-gated channels. How do their functions differ? In which segments of a neuron are they found?

Accepted Answer

Chemically gated channels are generally ...

Question 3

Fast axonal transport is

Accepted Answer

A)   passive and only occurs in the anterograde direction.
B)   passive and only occurs in the retrograde direction.
C)   active (requires ATP)  and only occurs in the anterograde direction.
D)   active (requires ATP)  and only occurs in the retrograde direction.
E)   active (requires ATP)  and can occur in either the anterograde or retrograde direction.F) A) and B)
G) C) and D)

Question 4

The glial cell that helps to form the blood-brain barrier is the

Accepted Answer

A)   astrocyte.
B)   ependymal cell.
C)   neurolemmocyte.
D)   microglial cell.
E)   oligodendrocyte.F) A) and C)
G) A) and E)

Question 5

Which of the following is false regarding acetylcholine?

Accepted Answer

A)   It is rarely used in the body.
B)   It is the neurotransmitter used at the neuromuscular junction.
C)   It is stored and released by the presynaptic cell.
D)   It is synthesized from acetic acid and choline.E) B) and C)
F) All of the above

Question 6

Although severing a peripheral axon leads to some degeneration, the neurilemma remains largely intact.

Accepted Answer

A) True 
 B)False

Question 7

The type of neuronal circuit in which several neurons process the same information at one time is a ________ circuit.

Accepted Answer

A)   converging
B)   diverging
C)   reverberating
D)   parallel-after-discharge
E)   None of the choices is correct.F) None of the above
G) All of the above

Question 8

A neuron conducting an impulse from the CNS to the detrusor muscle of the urinary bladder would be classified as a(n)  ________ neuron.

Accepted Answer

A)   autonomic motor
B)   somatic sensory
C)   somatic motor
D)   visceral sensoryE) A) and D)
F) All of the above

Question 9

A tumor can occur in any tissue within the CNS.

Accepted Answer

A) True 
 B)False

Question 10

As an axon approaches the cell onto which it will terminate, it generally branches repeatedly into several

Accepted Answer

A)   teloaxons.
B)   dendrites.
C)   collateral axons.
D)   telodendria.
E)   neurolemmocytes.F) B) and E)
G) A) and D)

Question 11

Somatic motor neuron axons fall into the category of

Accepted Answer

A)   A fibers.
B)   B fibers.
C)   C fibers.
D)   D fibers.E) B) and C)
F) A) and B)

Question 12

Saltatory conduction of a nerve impulse occurs only along myelinated axons.

Accepted Answer

A) True 
 B)False

Question 13

A neurotransmitter binds chemically gated ion channels on the postsynaptic cell, causing a depolarization. Functionally, this neurotransmitter can be classified as excitatory.

Accepted Answer

A) True 
 B)False

Question 14

One main category of neurotransmitters is amino acids.

Accepted Answer

A) True 
 B)False

Question 15

The motor nervous system is also known as the ________ nervous system.

Accepted Answer

The answer of The motor nervous system is also known...

Question 16

The type of neuronal circuit that ensures that we continue to breathe while asleep is a ________ circuit.

Accepted Answer

A)   converging
B)   diverging
C)   reverberating
D)   parallel-after-discharge
E)   None of the choices is correct.F) All of the above
G) D) and E)

Question 17

Chemical synapses are more common than electrical synapses.

Accepted Answer

A) True 
 B)False

Question 18

Some inhibitory neurotransmitters exert their effect by causing the opening of chloride channels, which results in the postsynaptic membrane becoming more negative.

Accepted Answer

A) True 
 B)False

Question 19

Which is true regarding the action of a neurolemmocyte?

Accepted Answer

A)   Each neurolemmocyte can form a myelin sheath around many axons simultaneously.
B)   A neurolemmocyte is responsible for forming part of the blood-brain barrier.
C)   Neurolemmocytes function only within the CNS.
D)   Each neurolemmocyte can wrap only a 1 mm portion of a single axon.
E)   A neurolemmocyte attacks pathogens.F) C) and D)
G) B) and E)

Question 20

Nerves and ganglia are structures found in the

Accepted Answer

A)   central nervous system.
B)   peripheral nervous system.
C)   central and peripheral nervous systems.D) A) and C)
E) All of the above

Exam 12: Nervous System: Nervous Tissue

Fast axonal transport is

Correct AnswerverifiedShow Answer

Nerves and ganglia are structures found in the

Correct AnswerverifiedShow Answer

Chemical synapses are more common than electrical synapses.

Correct AnswerverifiedShow Answer

A neurotransmitter binds chemically gated ion channels on the postsynaptic cell, causing a depolarization. Functionally, this neurotransmitter can be classified as excitatory.

Correct AnswerverifiedShow Answer

The type of neuronal circuit that ensures that we continue to breathe while asleep is a ________ circuit.

Correct AnswerverifiedShow Answer

Which is true regarding the action of a neurolemmocyte?

Correct AnswerverifiedShow Answer

Vesicles and glycoproteins required at the synapse are moved down a nerve fiber by ________ axonal transport.

Correct AnswerverifiedShow Answer

A neuron conducting an impulse from the CNS to the detrusor muscle of the urinary bladder would be classified as a(n) ________ neuron.

Correct AnswerverifiedShow Answer

Some inhibitory neurotransmitters exert their effect by causing the opening of chloride channels, which results in the postsynaptic membrane becoming more negative.

Correct AnswerverifiedShow Answer

As an axon approaches the cell onto which it will terminate, it generally branches repeatedly into several

Correct AnswerverifiedShow Answer

One main category of neurotransmitters is amino acids.

Correct AnswerverifiedShow Answer

Which of the following is false regarding acetylcholine?

Correct AnswerverifiedShow Answer

Saltatory conduction of a nerve impulse occurs only along myelinated axons.

Correct AnswerverifiedShow Answer

The type of neuronal circuit in which several neurons process the same information at one time is a ________ circuit.

Correct AnswerverifiedShow Answer

The motor nervous system is also known as the ________ nervous system.

Correct AnswerverifiedShow Answer

Somatic motor neuron axons fall into the category of

Correct AnswerverifiedShow Answer

A tumor can occur in any tissue within the CNS.

Correct AnswerverifiedShow Answer

Contrast chemically gated and voltage-gated channels. How do their functions differ? In which segments of a neuron are they found?

Correct AnswerverifiedChemically gated channels are generally ...View AnswerShow Answer

Although severing a peripheral axon leads to some degeneration, the neurilemma remains largely intact.

Correct AnswerverifiedShow Answer

The glial cell that helps to form the blood-brain barrier is the

Correct AnswerverifiedShow Answer

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Chemically gated channels are generally ...
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