Question 1

A change in the conditions in the synaptic knob can influence the soma as a result of_________axoplasmic transport.

Accepted Answer

The answer of A change in the conditions in the...

Question 2

____________ monitor the digestive, respiratory, cardiovascular, urinary, and reproductive systems.

Accepted Answer

The answer of ____________ monitor the digestive, respiratory, cardiovascular, urinary,...

Question 3

Integral membrane proteins that connect electrical synapses are called

Accepted Answer

A)   receptors.
B)   connexons.
C)   desmosomes.
D)   sodium channels.
E)   synapsins.F) All of the above
G) B) and D)

Question 4

Sensory neurons of the PNS are

Accepted Answer

A)   bipolar.
B)   tripolar.
C)   multipolar.
D)   unipolar.
E)   anaxonic.F) B) and E)
G) A) and D)

Question 5

Figure 11- 1 The Neuron
Use Figure 11- 1 to answer the following questions:
-The structures labeled "1" are dendrites. Their membranes contain numerous chemically gated ion channels.

Accepted Answer

A)   The first statement is true but the second statement is false.
B)   Both statements are false.
C)   Both statements are true.
D)   The first statement is false but the second statement is true.
E)   Both statements are true and relate to synaptic transmission.F) B) and E)
G) A) and D)

Question 6

Figure 11- 2 The Nerve Action Potential
Use Figure 11- 2 to answer the following questions:
-The myelin sheath that covers many CNS axons is formed by

Accepted Answer

A)   satellite cells.
B)   astrocytes.
C)   oligodendrocytes.
D)   microglia.
E)   ependymal cells.F) B) and C)
G) A) and E)

Question 7

Figure 11- 2 The Nerve Action Potential
Use Figure 11- 2 to answer the following questions:
-Which area of the graph occurs when there is a sudden inrush of sodium ions?

Accepted Answer

A)   1
B)   2
C)   3
D)   4E) None of the above
F) A) and B)

Question 8

If the chemically gated sodium channels in the postsynaptic membrane were completely blocked,

Accepted Answer

A)   synaptic transmission would fail.
B)   smaller action potentials would result.
C)   release of neurotransmitter would stop.
D)   both A and B
E)   A, B, and CF) All of the above
G) B) and C)

Question 9

The all- or- none principle states that

Accepted Answer

A)   all stimuli great enough to bring the membrane to threshold will produce identical action potentials.
B)   all stimuli will produce identical action potentials.
C)   the greater the magnitude of the stimuli, the greater the magnitude of the action potential.
D)   only motor stimuli can activate action potentials.
E)   only sensory stimuli can activate action potentials.F) None of the above
G) All of the above

Question 10

___________carry motor information to peripheral effectors

Accepted Answer

The answer of ___________carry motor information to peripheral effectors...

Question 11

_______neurons form the afferent division of the PNS.

Accepted Answer

A)   Neural sensory
B)   Somatic sensory
C)   Visceral sensory
D)   Sensory
E)   none of the aboveF) A) and B)
G) A) and C)

Question 12

The largest and most numerous neuroglia in the CNS are the

Accepted Answer

A)   oligodendrocytes.
B)   astrocytes.
C)   ependymal cells.
D)   microglia.
E)   none of the aboveF) A) and E)
G) C) and E)

Question 13

The neurilemma of axons in the peripheral nervous system is formed by

Accepted Answer

A)   oligodendrocytes.
B)   astrocytes.
C)   microglia.
D)   Schwann cells.
E)   satellite cells.F) B) and C)
G) D) and E)

Question 14

Most neurons lack ________and so are permanently blocked from undergoing cell division.

Accepted Answer

The answer of Most neurons lack ________and so are permanently...

Question 15

Voltage- gated sodium channels have both an activation gate and an)  ______ gate.

Accepted Answer

A)   swinging
B)   ion
C)   repolarization
D)   inactivation
E)   thresholdF) A) and B)
G) B) and E)

Question 16

When cholinergic receptors are stimulated,

Accepted Answer

A)   sodium ions enter the postsynaptic neuron.
B)   chloride ions enter the postsynaptic neuron.
C)   sodium ions leave the postsynaptic neuron.
D)   chloride ions leave the postsynaptic neuron.
E)   both B and DF) A) and C)
G) A) and D)

Question 17

In an)________ synapse, current flows directly between cells

Accepted Answer

The answer of In an)________ synapse, current flows directly between...

Question 18

Which of the following is not a recognized structural classification for neurons?

Accepted Answer

A)   multipolar
B)   anaxonic
C)   pseudopolar
D)   bipolar
E)   unipolarF) All of the above
G) None of the above

Question 19

The function of the astrocytes in the CNS includes which of the following?

Accepted Answer

A)   repairing damaged neural tissue
B)   guiding neuron development
C)   adjusting the composition of the interstitial fluid
D)   maintaining the blood- brain barrier
E)   all of the aboveF) B) and E)
G) A) and D)

Question 20

Figure 11- 1 The Neuron
Use Figure 11- 1 to answer the following questions:
-Which type of membrane channels are found at label "3"?

Accepted Answer

A)   voltage- gated Na+ channels
B)   voltage- gated K+ channels
C)   voltage- gated Ca2+ channels
D)   chemically gated Na+ and K+ channels
E)   both A and BF) A) and B)
G) A) and E)

Exam 11: Neural Tissue

_______neurons form the afferent division of the PNS.

Correct AnswerverifiedShow Answer

If the chemically gated sodium channels in the postsynaptic membrane were completely blocked,

Correct AnswerverifiedShow Answer

Sensory neurons of the PNS are

Correct AnswerverifiedShow Answer

The function of the astrocytes in the CNS includes which of the following?

Correct AnswerverifiedShow Answer

Integral membrane proteins that connect electrical synapses are called

Correct AnswerverifiedShow Answer

Figure 11- 1 The Neuron Use Figure 11- 1 to answer the following questions: -The structures labeled "1" are dendrites. Their membranes contain numerous chemically gated ion channels.

Correct AnswerverifiedShow Answer

When cholinergic receptors are stimulated,

Correct AnswerverifiedShow Answer

A change in the conditions in the synaptic knob can influence the soma as a result of_________axoplasmic transport.

Correct AnswerverifiedShow Answer

____________ monitor the digestive, respiratory, cardiovascular, urinary, and reproductive systems.

Correct AnswerverifiedShow Answer

___________carry motor information to peripheral effectors

Correct AnswerverifiedShow Answer

Figure 11- 2 The Nerve Action Potential Use Figure 11- 2 to answer the following questions: -Which area of the graph occurs when there is a sudden inrush of sodium ions?

Correct AnswerverifiedShow Answer

In an)________ synapse, current flows directly between cells

Correct AnswerverifiedShow Answer

The largest and most numerous neuroglia in the CNS are the

Correct AnswerverifiedShow Answer

Voltage- gated sodium channels have both an activation gate and an) ______ gate.

Correct AnswerverifiedShow Answer

Which of the following is not a recognized structural classification for neurons?

Correct AnswerverifiedShow Answer

Figure 11- 1 The Neuron Use Figure 11- 1 to answer the following questions: -Which type of membrane channels are found at label "3"?

Correct AnswerverifiedShow Answer

The all- or- none principle states that

Correct AnswerverifiedShow Answer

Most neurons lack ________and so are permanently blocked from undergoing cell division.

Correct AnswerverifiedShow Answer

Figure 11- 2 The Nerve Action Potential Use Figure 11- 2 to answer the following questions: -The myelin sheath that covers many CNS axons is formed by

Correct AnswerverifiedShow Answer

The neurilemma of axons in the peripheral nervous system is formed by

Correct AnswerverifiedShow Answer

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