Question 1

Loss of function in the enzyme acetylcholine esterase would result in which of the following?

Accepted Answer

A)   inability to destroy and remove acetylcholine from the synaptic cleft
B)   stimulation of the production of acetylcholine
C)   amplify or enhance the effect of ACh
D)   inability to release acetylcholine

Question 2

Figure 11.1
Using Figure 11.1, match the following:
-Which neuron is never myelinated?

Accepted Answer

A)  C
B)  B
C)  A

Question 3

The all-or-none phenomenon as applied to nerve conduction states that the whole nerve cell must be stimulated for conduction to take place.

Accepted Answer

A) True 
 B)False

Question 4

Axon diameter and degree of myelination determine nerve impulse conduction velocity.

Accepted Answer

A) True 
 B)False

Question 5

Nerve impulses leading to the brain carry information about cool temperatures on the skin.The nerve fibers sending these signals will most likely belong to which division of the nervous system?

Accepted Answer

A)   sensory (afferent)  division
B)   somatic nervous system
C)   sympathetic division
D)   parasympathetic division

Question 6

Figure 11.1
Using Figure 11.1, match the following:
-Which neuron is common only in dorsal root ganglia of the spinal cord and sensory ganglia of cranial nerves?

Accepted Answer

A)  C
B)  B
C)  A A

Question 7

Match the following:
-May be involved in complex,exacting types of mental processing.

Accepted Answer

A)  Parallel after-discharge circuit
B)  Reverberating circuit
C)  Diverging circuit
D)  Converging circuit

Question 8

The term central nervous system refers to the ________.

Accepted Answer

A)   brain and spinal cord
B)   sensory (afferent)  nerves
C)   the somatic nerves
D)   the spinal nerves A

Question 9

The synapse more common in embryonic nervous tissue than in adults is the ________.

Accepted Answer

The answer of The synapse more common in embryonic nervous...

Question 10

Which of the following is not characteristic of neurons?

Accepted Answer

A)   They have an exceptionally high metabolic rate.
B)   They conduct impulses.
C)   They have extreme longevity.
D)   They are mitotic.

Question 11

Which of the following will occur when an excitatory postsynaptic potential (EPSP) is being generated on the dendritic membrane?

Accepted Answer

A)   Sodium gates will open first, then close as potassium gates open.
B)   A single type of channel will open, permitting simultaneous flow of sodium and potassium.
C)   Specific sodium gates will open.
D)   Specific potassium gates will open.

Question 12

That part of the nervous system that conducts impulses from the CNS to the skeletal muscles is the ________ nervous system.

Accepted Answer

The answer of That part of the nervous system that...

Question 13

What are the basic divisions of the peripheral nervous system?

Accepted Answer

Sensory and motor divisions.Sensory has two divisions: the somatic and visceral.Motor has two divisions: the somatic and autonomic.The autonomic has two divisions: the sympathetic and parasympathetic.

Question 14

Enkephalins and endorphins are peptides that act like morphine.

Accepted Answer

A) True 
 B)False

Question 15

A second nerve impulse cannot be generated until ________.

Accepted Answer

A)   all sodium gates are closed
B)   the membrane potential has been reestablished
C)   the Na ions have been pumped back into the cell
D)   proteins have been resynthesized

Question 16

Select the correct statement regarding chemical synapses.

Accepted Answer

A)   The synaptic cleft uses the action potential to transmit a chemical signal to the post synaptic cell.
B)   The release of neurotransmitter molecules gives cells the property of being electrically coupled.
C)   Cells with gap junctions use chemical synapses.
D)   Neurotransmitter receptors are located on the axons terminals of cells.

Question 17

Reflexes are rapid,automatic responses to stimuli that will produce the same effect every time.

Accepted Answer

A) True 
 B)False

Question 18

Cell bodies of sensory neurons may be located in ganglia lying outside the central nervous system.

Accepted Answer

A) True 
 B)False

Question 19

Schwann cells are functionally similar to ________.

Accepted Answer

A)   astrocytes
B)   microglia
C)   ependymal cells
D)   oligodendrocytes

Question 20

Figure 11.2
Using Figure 11.2, match the following:
-Calcium ions.

Accepted Answer

A)  C
B)  E
C)  B
D)  D
E)  A

Exam 11: Fundamentals of the Nervous System and Nervous Tissue

Loss of function in the enzyme acetylcholine esterase would result in which of the following?

Correct AnswerverifiedShow Answer

Figure 11.1 Using Figure 11.1, match the following: -Which neuron is never myelinated?

Correct AnswerverifiedShow Answer

The all-or-none phenomenon as applied to nerve conduction states that the whole nerve cell must be stimulated for conduction to take place.

Correct AnswerverifiedShow Answer

Axon diameter and degree of myelination determine nerve impulse conduction velocity.

Correct AnswerverifiedShow Answer

Nerve impulses leading to the brain carry information about cool temperatures on the skin.The nerve fibers sending these signals will most likely belong to which division of the nervous system?

Correct AnswerverifiedShow Answer

Figure 11.1 Using Figure 11.1, match the following: -Which neuron is common only in dorsal root ganglia of the spinal cord and sensory ganglia of cranial nerves?

Correct AnswerverifiedA

Match the following: -May be involved in complex,exacting types of mental processing.

Correct AnswerverifiedShow Answer

The term central nervous system refers to the ________.

Correct AnswerverifiedA

The synapse more common in embryonic nervous tissue than in adults is the ________.

Correct AnswerverifiedShow Answer

Which of the following is not characteristic of neurons?

Correct AnswerverifiedShow Answer

Which of the following will occur when an excitatory postsynaptic potential (EPSP) is being generated on the dendritic membrane?

Correct AnswerverifiedShow Answer

That part of the nervous system that conducts impulses from the CNS to the skeletal muscles is the ________ nervous system.

Correct AnswerverifiedShow Answer

What are the basic divisions of the peripheral nervous system?

Correct AnswerverifiedSensory and motor divisions.Sensory has two divisions: the somatic and visceral.Motor has two divisions: the somatic and autonomic.The autonomic has two divisions: the sympathetic and parasympathetic.

Enkephalins and endorphins are peptides that act like morphine.

Correct AnswerverifiedShow Answer

A second nerve impulse cannot be generated until ________.

Correct AnswerverifiedShow Answer

Select the correct statement regarding chemical synapses.

Correct AnswerverifiedShow Answer

Reflexes are rapid,automatic responses to stimuli that will produce the same effect every time.

Correct AnswerverifiedShow Answer

Cell bodies of sensory neurons may be located in ganglia lying outside the central nervous system.

Correct AnswerverifiedShow Answer

Schwann cells are functionally similar to ________.

Correct AnswerverifiedShow Answer

Figure 11.2 Using Figure 11.2, match the following: -Calcium ions.

Correct AnswerverifiedShow Answer

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Sensory and motor divisions.Sensory has two divisions: the somatic and visceral.Motor has two divisions: the somatic and autonomic.The autonomic has two divisions: the sympathetic and parasympathetic.

Correct Answer
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