Parasympathetic influence on the atrial myocardium and atrioventricular node of man.
D000293:Adolescent; D000328:Adult; D006321:Heart / Q000502:physiology*; D006329:Heart Conduction System / Q000502:physiology*; D006801:Humans; D008875:Middle Aged; D009482:Neurophysiology; D010138:Pacemaker, Artificial; D010809:Physical Fitness; D012849:Sinoatrial Node / Q000502:physiology; D014630:Vagus Nerve / Q000502:physiology*