Excitation-contraction coupling in smooth muscle.
D000109:Acetylcholine / Q000494:pharmacology; D000818:Animals; D001665:Binding Sites; D002118:Calcium / Q000494:pharmacology; D002127:Calcium Isotopes; D002463:Cell Membrane Permeability; D006168:Guinea Pigs; D007082:Ileum / Q000187:drug effects*; D009119:Muscle Contraction / Q000187:drug effects*; D009130:Muscle, Smooth / Q000187:drug effects*
D002127:Calcium Isotopes; D000109:Acetylcholine; D002118:Calcium