Which one is excitatory neurotransmitter?
acetylcholine serves excitatory and inhibitory functions, which means that ACh can speed up or slow down nerve signals. In the central nervous system, its function is mainly excitatory Ref : guyton and hall textbook of medical physiology 12 edition page number:677,678,679
Acetylcholine
Histamine
Melatonin
GABA
Nervous system