title: Excitation of autonomic nerve fibers in the canine papillary muscle.
mesh_terms: D000319:Adrenergic beta-Antagonists / Q000494:pharmacology; D000818:Animals; D001285:Atropine / Q000494:pharmacology; D001341:Autonomic Nervous System / Q000502:physiology*; D002122:Calcium Chloride / Q000494:pharmacology; D004285:Dogs; D004558:Electric Stimulation; D006352:Heart Ventricles / Q000294:innervation; D006426:Hemicholinium 3 / Q000494:pharmacology; D066298:In Vitro Techniques; D009413:Nerve Fibers, Myelinated / Q000502:physiology; D009474:Neurons / Q000502:physiology*; D009638:Norepinephrine / Q000494:pharmacology; D010210:Papillary Muscles / Q000294:innervation*; D010227:Parabiosis; D013779:Tetrodotoxin / Q000494:pharmacology
chemical_list: D000319:Adrenergic beta-Antagonists; D006426:Hemicholinium 3; D013779:Tetrodotoxin; D001285:Atropine; D002122:Calcium Chloride; D009638:Norepinephrine