Selective suppression of neural excitation by tetrodotoxin injected into the canine atrioventricular node artery.
D000818:Animals; D003331:Coronary Vessels; D004285:Dogs; D004305:Dose-Response Relationship, Drug; D004558:Electric Stimulation; D004567:Electrodes, Implanted; D006325:Heart Atria; D006329:Heart Conduction System / Q000187:drug effects*; D007269:Injections, Intra-Arterial; D008688:Methacholine Compounds / Q000494:pharmacology; D009538:Nicotine / Q000037:antagonists & inhibitors / Q000494:pharmacology; D009638:Norepinephrine / Q000494:pharmacology; D010477:Perfusion; D013233:Stellate Ganglion / Q000502:physiology; D013779:Tetrodotoxin / Q000008:administration & dosage / Q000494:pharmacology*; D014439:Tyramine / Q000494:pharmacology; D014628:Vagotomy; D014630:Vagus Nerve / Q000502:physiology
D008688:Methacholine Compounds; D013779:Tetrodotoxin; D009538:Nicotine; D009638:Norepinephrine; D014439:Tyramine