title: Cardiac automaticity and its control.
mesh_terms: D000109:Acetylcholine / Q000502:physiology; D000200:Action Potentials; D000818:Animals; D002118:Calcium / Q000378:metabolism; D002712:Chlorides / Q000378:metabolism; D004558:Electric Stimulation; D006329:Heart Conduction System / Q000502:physiology*; D007477:Ions; D008564:Membrane Potentials; D011188:Potassium / Q000378:metabolism; D011690:Purkinje Fibers / Q000502:physiology; D012849:Sinoatrial Node / Q000502:physiology; D012964:Sodium / Q000378:metabolism; D013564:Sympathetic Nervous System / Q000473:pathology; D013997:Time Factors; D014630:Vagus Nerve / Q000502:physiology
chemical_list: D002712:Chlorides; D007477:Ions; D012964:Sodium; D000109:Acetylcholine; D011188:Potassium; D002118:Calcium