Which of the following neurotransmitters functions as a common inhibitory neurotransmitter in the brain?
A) serotonin
B) GABA
C) acetylcholine
D) norepinephrine

Question

Quizplus · Accepted Answer

GABA (gamma-aminobutyric acid) functions as a common inhibitory neurotransmitter in the brain by decreasing neuronal excitability and reducing the likelihood of action potentials being fired. This helps to maintain a balance between excitatory and inhibitory neurotransmitters in the brain. Serotonin, acetylcholine, and norepinephrine are all primarily excitatory neurotransmitters.

Which of the Following Neurotransmitters Functions as a Common Inhibitory