GABA (Gamma amino butyric acid) is characteristic of: (A) Post-synaptic excitatory transmitter, (B) Post-synaptic inhibitory transmitter, (C) Activator of glia-cell function, (D) Inhibitor of glia cell function
Answer is B. Functions of GABA:- One of the major inhibitory neurotransmitters in brain. Regulates the activity of neurons by discouraging the transmission signals It is believed that GABA opens chloride channels & (|||) the permeability of post-synaptic membranes. (|) GABA levels will cause excitation in brain leading to convulsions