Multiple choice

Which is the chief inhibitory neurotransmitter in the mammalian central nervous system?

  1. Adrenaline

  2. Androgen

  3. GABA

  4. Nitric oxide

  5. Purine

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

Gamma aminobutyric acid (GABA) plays a role in regulating neuronal excitability throughout the nervous system. Neurons in every region of the brain use GABA to fine tune neurotransmission.