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Peripheral Nervous System
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AP Psychology
AP.069 Peripheral Nervous System
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After a cut damages a peripheral nerve in the upper arm, a person understands the command to lift the arm but cannot execute the movement normally. Which explanation best applies the PNS concept?
A
The spinal cord has become a peripheral organ because the arm cannot move.
B
The CNS can form the command, but the somatic PNS pathway to arm muscles is disrupted.
C
The endocrine system cannot store the command, so memory is lost.
D
The autonomic PNS pathway to the stomach is the main cause of arm weakness.
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