title: Biphasic contractures of guinea-pig cardiac ventricular muscle.
mesh_terms: D000818:Animals; D002118:Calcium / Q000037:antagonists & inhibitors / Q000494:pharmacology; D004558:Electric Stimulation; D006168:Guinea Pigs; D008564:Membrane Potentials; D009119:Muscle Contraction / Q000187:drug effects*; D009132:Muscles / Q000187:drug effects*; D009584:Nitrogen / Q000494:pharmacology; D009638:Norepinephrine / Q000378:metabolism; D010100:Oxygen / Q000494:pharmacology; D010210:Papillary Muscles / Q000187:drug effects; D011188:Potassium / Q000494:pharmacology*; D012110:Reserpine / Q000494:pharmacology; D012964:Sodium / Q000494:pharmacology; D013268:Stimulation, Chemical
chemical_list: D012110:Reserpine; D012964:Sodium; D009584:Nitrogen; D011188:Potassium; D010100:Oxygen; D002118:Calcium; D009638:Norepinephrine