Question

cocaine stimulates key receptors within the ______.
○ brain
○ stomach
○ lungs
○ heart

Explanation:

Cocaine is a psychoactive drug that acts on the central nervous system. Its primary site of action for stimulating receptors is the brain, where it affects neurotransmitter systems (like dopamine). The stomach, lungs, and heart are not the primary sites for cocaine's receptor - stimulating action related to its psychoactive effects.

Answer:

A. brain