Question 1

Substance P is a neuropeptide that functions in the transmission of pain information to the brain.

Accepted Answer

A) True 
 B)False

Question 2

Electrical signals are conducted toward the cell body of a neuron by its __________.

Accepted Answer

The answer of Electrical signals are conducted toward the cell...

Question 3

As the distance between a damaged axon and its receptor organ increases,the possibility of repair increases.

Accepted Answer

A) True 
 B)False

Question 4

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 5

What type of circuit would you use to solve a higher-order mathematical problem

Accepted Answer

A)  Converging
B)  Diverging
C)  Reverberating
D)  Parallel-after-discharge
E)  None of the choices is correct.F) C) and D)
G) B) and C)

Question 6

The glial cell with perivascular feet that wrap around capillaries in the CNS is the

Accepted Answer

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

Question 7

The glial cell with the responsibility of occupying the space left by dead or dying neurons is the

Accepted Answer

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

Question 8

Which part of the neuron contains the nucleus

Accepted Answer

A)  Dendrite
B)  Axon
C)  Soma
D)  Axon hillock
E)  TelodendrionF) B) and D)
G) A) and B)

Question 9

Nerve impulses are transmitted only along exposed portions of an axon.

Accepted Answer

A) True 
 B)False

Question 10

The hyperpolarization that occurs at the end of an action potential is due to the prolonged

Accepted Answer

A)  open state of voltage-gated sodium channels.
B)  closure of chemically gated sodium channels.
C)  open state of voltage-gated potassium channels.
D)  closure of voltage-gated potassium channels.
E)  open state of chemically gated sodium channels.F) A) and E)
G) A) and B)

Question 11

Anterograde transport is the movement of materials from synaptic knobs to the cell body.

Accepted Answer

A) True 
 B)False

Question 12

What do all glial cells have in common

Accepted Answer

A)  They help to transmit the nerve signals.
B)  They transfer blood to the various neurons.
C)  They assist neurons in their respective functions.
D)  They all attack pathogens.
E)  They absorb extra blood and cerebrospinal fluid.F) B) and E)
G) A) and B)

Question 13

Wallerian degeneration involves the breakdown of

Accepted Answer

A)  the segments of axon and myelin sheath between the site of damage and the peripheral effector.
B)  the segments of axon and myelin sheath between the site of damage and the cell body.
C)  the neurilemma both central and peripheral to the site of trauma.
D)  macrophages and microglia that have completed the job of CNS cleanup after trauma.E) A) and B)
F) B) and C)

Question 14

A nerve impulse travels fastest along ________ axons of ______ diameter.

Accepted Answer

A)  myelinated,small
B)  unmyelinated,small
C)  myelinated,large
D)  unmyelinated,largeE) B) and D)
F) All of the above

Question 15

A graded potential is one that

Accepted Answer

A)  is all or none (always the same intensity) .
B)  travels the length of the nerve fiber (is long-distance) .
C)  varies in size depending on the magnitude of the stimulus (larger voltage change for stronger stimulus) .
D)  lasts for several seconds after ion channels have opened,closed,and reset.E) None of the above
F) A) and B)

Question 16

When a neuromodulator slows the reuptake of a neurotransmitter or causes expression of an increased number of receptors on postsynaptic neurons,the effect is called

Accepted Answer

A)  facilitation.
B)  temporal summation.
C)  spatial summation.
D)  presynaptic potentiation.
E)  recruitment.F) C) and D)
G) B) and E)

Question 17

The glial cell that protects neuron cell bodies located within ganglia is the

Accepted Answer

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

Question 18

There are two types of synapses,based on mode of communication.What are they

Accepted Answer

A)  Mechanical and chemical
B)  Magnetic and physical
C)  Physical and chemical
D)  Chemical and electrical
E)  Mechanical and electricalF) None of the above
G) C) and D)

Question 19

A graph of an EPSP would plot time against a voltage trace that would resemble

Accepted Answer

A)  a hill where the high point approaches the threshold value.
B)  a hill where the high point is the farthest away from the threshold value.
C)  a valley where the low point approaches the threshold value.
D)  a valley where the low point is the farthest away from the threshold value.E) None of the above
F) All of the above

Question 20

The epineurium is composed of

Accepted Answer

A)  dense regular connective tissue.
B)  simple squamous epithelium.
C)  dense irregular connective tissue.
D)  areolar connective tissue.
E)  pseudostratified nonkeratinized epithelium.F) A) and B)
G) B) and C)

Exam 12: Nervous System: Nervous Tissue

As the distance between a damaged axon and its receptor organ increases,the possibility of repair increases.

Correct AnswerverifiedShow Answer

The glial cell that protects neuron cell bodies located within ganglia is the

Correct AnswerverifiedShow Answer

The epineurium is composed of

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Substance P is a neuropeptide that functions in the transmission of pain information to the brain.

Correct AnswerverifiedShow Answer

What do all glial cells have in common

Correct AnswerverifiedShow Answer

The hyperpolarization that occurs at the end of an action potential is due to the prolonged

Correct AnswerverifiedShow Answer

The glial cell with the responsibility of occupying the space left by dead or dying neurons is the

Correct AnswerverifiedShow Answer

There are two types of synapses,based on mode of communication.What are they

Correct AnswerverifiedShow Answer

What type of circuit would you use to solve a higher-order mathematical problem

Correct AnswerverifiedShow Answer

A nerve impulse travels fastest along ________ axons of ______ diameter.

Correct AnswerverifiedShow Answer

A graded potential is one that

Correct AnswerverifiedShow Answer

When a neuromodulator slows the reuptake of a neurotransmitter or causes expression of an increased number of receptors on postsynaptic neurons,the effect is called

Correct AnswerverifiedShow Answer

A graph of an EPSP would plot time against a voltage trace that would resemble

Correct AnswerverifiedShow Answer

Electrical signals are conducted toward the cell body of a neuron by its __________.

Correct AnswerverifiedShow Answer

Nerve impulses are transmitted only along exposed portions of an axon.

Correct AnswerverifiedShow Answer

The glial cell with perivascular feet that wrap around capillaries in the CNS is the

Correct AnswerverifiedShow Answer

Wallerian degeneration involves the breakdown of

Correct AnswerverifiedShow Answer

Anterograde transport is the movement of materials from synaptic knobs to the cell body.

Correct AnswerverifiedShow Answer

Which part of the neuron contains the nucleus

Correct AnswerverifiedShow Answer

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A nerve impulse travels fastest along __ axons of diameter.

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