SEARCH Articles Figures Tables Acetylcholine active site Acetylcholine activity Acetylcholine activity Acetylcholine esterase, active serine, mechanism Acetylcholine nicotinic activity Acetylcholine receptor activation cycle Acetylcholine receptor-inducing activity Acetylcholine receptor-inducing activity ARIA) Acetylcholine receptors active site Acetylcholine structure-activity relationships Hypothalamus, acetylcholine activity Neuronal nicotinic acetylcholine receptors activation Nicotinic acetylcholine receptors activation mechanism Nigrostriatal dopamine pathway acetylcholine activity