title: Resolution of two components in the upstroke of the action potential in atrioventricular fibers of the rabbit heart.
mesh_terms: D000200:Action Potentials; D000818:Animals; D016275:Atrial Function; D004558:Electric Stimulation; D004594:Electrophysiology; D006329:Heart Conduction System / Q000502:physiology*; D006346:Heart Septum / Q000502:physiology; D066298:In Vitro Techniques; D008722:Methods; D008839:Microelectrodes; D010477:Perfusion; D011817:Rabbits; D012964:Sodium / Q000502:physiology; D016276:Ventricular Function
chemical_list: D012964:Sodium