Multiple Choice
How do endorphins work to relieve pain?
A) They activate the release of substance P, closing the pain 'gate' in the spinal cord.
B) They inhibit the release of substance P, closing the pain 'gate' in the spinal cord.
C) They activate the release of substance P, opening the pain 'gate' in the spinal cord.
D) They inhibit the release of substance P, opening the pain 'gate' in the spinal cord.
Correct Answer:

Verified
Correct Answer:
Verified
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