Morphine reduces pain because it is an _______ that potentiates the effects of _______.
A) agonist; endorphins
B) antagonist; acetylcholine
C) antagonist; GABA
D) agonist; substance P
E) antagonist; nitric oxide

Question

Quizplus · Accepted Answer

Morphine is an agonist that binds to and activates opioid receptors in the brain and spinal cord. These receptors are normally activated by endorphins, which are the body's natural painkillers. By binding to these receptors, morphine potentiates the effects of endorphins and reduces the sensation of pain.

Morphine Reduces Pain Because It Is an _______ That Potentiates