title: Effects of variations in extracellular acetylcholine and calcium ion concentration on the operational level of calcium channels in intestinal smooth muscle.
mesh_terms: D000109:Acetylcholine / Q000494:pharmacology*; D000818:Animals; D002118:Calcium / Q000378:metabolism* / Q000494:pharmacology; D006168:Guinea Pigs; D007082:Ileum / Q000378:metabolism; D066298:In Vitro Techniques; D007473:Ion Channels / Q000187:drug effects*; D008297:Male; D008954:Models, Biological; D009119:Muscle Contraction / Q000187:drug effects; D009130:Muscle, Smooth / Q000187:drug effects / Q000378:metabolism*; D011950:Receptors, Cholinergic / Q000187:drug effects
chemical_list: D007473:Ion Channels; D011950:Receptors, Cholinergic; D000109:Acetylcholine; D002118:Calcium