Which of the following is not known to be an important neurotransmitter in the CNS?
A)Dopamine
B)Acetylcholine
C)Morphine
D)Glutamate
E)Substance P

Question

Quizplus · Accepted Answer

Morphine is not a neurotransmitter, but rather an opioid analgesic that acts on receptors in the CNS to decrease pain perception. The other options are all known to be important neurotransmitters in the CNS: dopamine is involved in reward and motor control, acetylcholine is involved in learning and memory, glutamate is the primary excitatory neurotransmitter, and substance P is involved in pain perception and mood.

Which of the Following Is Not Known to Be an Important