Multiple choice

An inhibitory neurotransmitter decreases the electrochemical activity of neurons. Among the following, ___________ is a chief inhibitory neurotransmitter in mammals.

  1. gadopentetic acid

  2. galantamine

  3. galactose

  4. γ-aminobutyric acid

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

γ-Aminobutyric acid is the chief inhibitory neurotransmitter in the mammalian central nervous system. It plays a role in regulating neuronal excitability throughout the nervous system.