The most common neurotransmitter in the brain is
A)glycine.
B)acetylcholine.
C)serotonin.
D)GABA.

Question

Quizplus · Accepted Answer

GABA (gamma-aminobutyric acid) is the most common inhibitory neurotransmitter in the brain, involved in regulating various brain functions such as anxiety, sleep, and muscle tone. While acetylcholine and serotonin also play important roles in brain function, they are not the most common neurotransmitters. Glycine is an inhibitory neurotransmitter found primarily in the spinal cord and brainstem.

The Most Common Neurotransmitter in the Brain Is