Multiple Choice
One possibility for opioid mechanism is that action in the _______ causes descending fibers from the brainstem to directly inhibit dorsal horn cells that transmit _______ information.
A) periaqueductal gray; pain
B) somatosensory cortex; vibration
C) thalamus; heat
D) pons; light touch
Correct Answer:

Verified
Correct Answer:
Verified
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