Heroin mimics the actions of endorphins, inhibiting pain signals and creating a "high" feeling. Heroin is an example of a(n):
A) protagonist.
B) antagonist.
C) agonist.
D) glial cell.

Question

Quizplus · Accepted Answer

Heroin mimics the actions of endorphins, which are the body's natural pain relievers. By binding to the same receptors as endorphins, heroin acts as an agonist, activating these receptors and inhibiting pain signals, as well as creating a feeling of pleasure or euphoria.

Heroin Mimics the Actions of Endorphins, Inhibiting Pain Signals and Creating