Multiple Choice
Identify the choice that best completes the
statement or answers the question.
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1.
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A signal in the environment that can make an organism react is called
a(n)
a. | response. | b. | reaction. | c. | stimulus. | d. | impulse. |
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2.
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When you feel thirsty.Your nervous system is helping you maintain
a. | oxygen levels | b. | calcium levels | c. | sugar
levels | d. | homeostasis |
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3.
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A synapse is the gap between
a. | a dendrite and the cell body. | b. | a dendrite and an axon | c. | an axon and the cell
body. | d. | the axon tip of one neuron and the dendrite of another
neuron |
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4.
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In which direction does an impulse travel?
a. | dendrite -> axon tip -> axon -> cell body | b. | axon tip -> axon
-> cell body -> dendrite | c. | dendrite -> cell body -> axon -> axon
tip | d. | cell body -> dendrite -> axon tip -> axon |
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5.
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An automatic response of the body that occurs without conscious control
is called a(n)
a. | autonomic reflex. | b. | conscious reaction | c. | stimulus | d. | interneuron. |
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6.
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A baseball player reaches out and catches a ball. This conscious action
is a(n)
a. | somatic response. | b. | autonomic response | c. | stimulus. | d. | depressant. |
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7.
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A motor neuron sends an impulse to
a. | the brain | b. | the receptor cells. | c. | a muscle
| d. | an interneuron. |
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8.
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The sense of smell detects
a. | light. | b. | air born molecules. | c. | sound
waves. | d. | pressure |
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9.
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The sense of sight detects
a. | airborn molecules | c. | sound waves | b. | solid and liquid molecules | d. | light waves |
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10.
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The information received by the sense of touch is
a. | airborn molecules | c. | sound waves | b. | heat and pressure | d. | light waves |
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11.
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The information received by the sense of taste is
a. | light | c. | solid and liquid molecles | b. | sound | d. | magnetism |
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12.
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Which structures of the nervos system function to send messages to the
brain?
a. | sensory neurons | c. | interneurons | b. | motor neurons |
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13.
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Which structures of the nervous system function to send messages away from
the brain?
a. | motor neuron | c. | interneuron | b. | sensory neuron |
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14.
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Which structures of the nervos system function to process
information?
a. | sensory neuron | c. | interneuron | b. | motor neuron |
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15.
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Which structure(s) sends nerve impulses to the brain?
a. | optic nerve | c. | sensory neurons | b. | auditory nerve | d. | all of the
above |
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16.
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An elecrical signal that travels through the nerves is a(n)
a. | neuron | c. | nerve impulse | b. | response |
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17.
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A nerve fiber is
a. | a chain of neurons | c. | a chain of nerves | b. | smaller than a
neuron |
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18.
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The major organ involved in the sense of touch is
a. | the eye | c. | the mouth | b. | the nose | d. | the skin |
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19.
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The central nervous system is
a. | the brain and spinal cord | c. | receptor cells | b. | outer
nerves |
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20.
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The peripheral nervous system is
a. | the brain and spinal cord | c. | made mostly of
interneurons | b. | the nerves extending from and leading to the spinal
cord |
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