title: Selective stimulation of the parasympathetic preganglionic nerve fibres in the excised and blood-perfused SA node preparation of the dog.
mesh_terms: D000818:Animals; D001285:Atropine / Q000494:pharmacology; D001339:Autonomic Fibers, Preganglionic / Q000502:physiology*; D001769:Blood; D004285:Dogs; D004558:Electric Stimulation; D004562:Electrocardiography; D006321:Heart / Q000187:drug effects; D006325:Heart Atria; D006339:Heart Rate; D006584:Hexamethonium Compounds / Q000494:pharmacology; D009206:Myocardium; D010393:Pempidine / Q000494:pharmacology; D010477:Perfusion; D010830:Physostigmine / Q000494:pharmacology; D012849:Sinoatrial Node / Q000502:physiology*; D013779:Tetrodotoxin / Q000494:pharmacology
chemical_list: D006584:Hexamethonium Compounds; D013779:Tetrodotoxin; D001285:Atropine; D010830:Physostigmine; D010393:Pempidine