Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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Neurotransmitters are a. | electrical impulses. | b. | found only in
neurons with myelin sheaths. | c. | released at synapses. | d. | produced by
muscles. | | |
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2.
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Refer
to the illustration above. If neurotransmitters could not be cleared out of a synapse after
transmitting a message, a. | a postsynaptic neuron would continue to be stimulated for an
indefinite period of time. | b. | the presynaptic neuron could not pass on its
impulse. | c. | the postsynaptic neuron would not be
stimulated. | d. | None of the above | | |
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3.
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Refer
to the illustration above. Which labeled object in the diagram would be responsible for removing
neurotransmitters from the synaptic cleft?
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4.
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Refer
to the illustration above. Hunger and thirst are regulated by structure
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5.
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The
effects of alcohol on the human body include a. | changes to the cell membrane of nerve
cells. | b. | altered transmission of nerve
signals. | c. | impaired coordination. | d. | All of the
above | | |
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