title: Comparative dependence on adrenergic neural tone by automaticity in the sinus node and in the atrioventricular junction.
mesh_terms: D000109:Acetylcholine / Q000494:pharmacology; D000319:Adrenergic beta-Antagonists / Q000494:pharmacology; D000818:Animals; D001285:Atropine / Q000494:pharmacology; D004285:Dogs; D004562:Electrocardiography; D005724:Ganglia / Q000601:surgery; D006329:Heart Conduction System / Q000502:physiology*; D006339:Heart Rate / Q000187:drug effects; D009474:Neurons / Q000502:physiology*; D010830:Physostigmine / Q000494:pharmacology; D011433:Propranolol / Q000494:pharmacology; D012110:Reserpine / Q000494:pharmacology; D012849:Sinoatrial Node / Q000502:physiology*; D013233:Stellate Ganglion / Q000502:physiology; D013268:Stimulation, Chemical; D013562:Sympathectomy; D013564:Sympathetic Nervous System / Q000502:physiology
chemical_list: D000319:Adrenergic beta-Antagonists; D001285:Atropine; D012110:Reserpine; D010830:Physostigmine; D011433:Propranolol; D000109:Acetylcholine