Table 1.
Neurotransmission and chemical transmitters
| Cholinergic | Biogenic | Amino acid |
| Acetylcholine | Dopamine | GABA |
| Norepinephrine | Glycine | |
| Serotonin | Glutamate | |
| Histamine | Aspartate |
GABA, γ-amino butyric acid.
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