Cholinergic Agonists and Antagonists M1,M3,M5(Gq coupled) Muscarinic R (mAChR) M2,M4(Gi coupled) Cholinergic R Nicotinic R NM(neuromuscular,or muscle type) (nAChR) NN(neuronal,or ganglion type) 1,2 Adrenergic R B1,B2,B3 Dopamine R D1,D2,D3D4,D5 Other receptors(receptors for NANC transmitters, e.g.nitric oxide,vasoactive intestinal peptide,neuropeptide Y) 11 Cholinergic Agonists and Antagonists Cholinergic R Adrenergic R Dopamine R Muscarinic R Nicotinic R M1, M3, M5 (Gq coupled) M2, M4 (Gi coupled) NM (neuromuscular, or muscle type) NN (neuronal, or ganglion type) β1, α1, α2 β2, β3 D1, D2, D3, D4, D5 Other receptors (receptors for NANC transmitters, e.g. nitric oxide, vasoactive intestinal peptide, neuropeptide Y) (mAChR) (nAChR)