Chemicals that can inhibit or block sensations of pain are:
A) norepinephrine.
B) GABA.
C) serotonin.
D) endorphins.

Question

Quizplus · Accepted Answer

Endorphins are chemicals produced by the body that can bind to opioid receptors in the brain and spinal cord, leading to a reduction in sensations of pain. Norepinephrine, GABA, and serotonin have other roles in the body and are not primarily involved in pain modulation.

Chemicals That Can Inhibit or Block Sensations of Pain Are