Multiple Choice
Opioids derived from the poppy, such as morphine:
A) bind G-protein-coupled receptors that are responsive to endorphin and encephalin.
B) act directly on peripheral sensory neurons.
C) act directly on spinal cord neurons.
D) act directly on neurons in the brainstem.
E) All of the above
Correct Answer:

Verified
Correct Answer:
Verified
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