title: Possible neurotransmitter role of acetylcholine, 5-hydroxytriptamine and dopamine in Heobania CNS.
mesh_terms: D000109:Acetylcholine / Q000502:physiology*; D000818:Animals; D002490:Central Nervous System / Q000502:physiology*; D004298:Dopamine / Q000502:physiology*; D012701:Serotonin / Q000502:physiology*; D012908:Snails; D009435:Synaptic Transmission
chemical_list: D012701:Serotonin; D000109:Acetylcholine; D004298:Dopamine