Heroin mimics the actions of endorphins, inhibiting pain signals. Heroin is an example of a(n) __________.
A) agonist
B) protagonist
C) antagonist
D) glial cell

Question

Quizplus · Accepted Answer

Heroin mimics the actions of endorphins, which are natural pain-relieving chemicals produced by the body. Therefore, it acts as an agonist by binding to the same receptors and activating them, resulting in pain relief and feelings of euphoria.

Heroin Mimics the Actions of Endorphins, Inhibiting Pain Signals