title: Specific inhibition of calcium channels by calcium ions in smooth muscle.
mesh_terms: D000818:Animals; D001665:Binding Sites; D001667:Binding, Competitive; D002118:Calcium / Q000037:antagonists & inhibitors / Q000378:metabolism*; D003035:Cobalt / Q000378:metabolism / Q000494:pharmacology; D006168:Guinea Pigs; D007082:Ileum / Q000378:metabolism; D066298:In Vitro Techniques; D007473:Ion Channels / Q000378:metabolism*; D009119:Muscle Contraction / Q000187:drug effects; D009130:Muscle, Smooth / Q000378:metabolism*; D011188:Potassium / Q000494:pharmacology
chemical_list: D007473:Ion Channels; D003035:Cobalt; D011188:Potassium; D002118:Calcium