title: [Development of extracardiac influences in the ontogeny of the dog].
abstract: Using pharmacological drugs, studies have been made on the development of sympathetic and parasympathetic innervation of the heart in ontogenesis of dogs. It is concluded that sympathetic and parasympathetic innervation operates already at the delivery of animals. Originally their effect is observed only as regulation of cardiac pacemakers, influences on the contractile properties of the heart being exerted in later ontogenesis.
mesh_terms: D000109:Acetylcholine / Q000502:physiology; D000818:Animals; D004285:Dogs / Q000254:growth & development*; D006321:Heart / Q000294:innervation* / Q000502:physiology; D006339:Heart Rate; D009200:Myocardial Contraction; D009638:Norepinephrine / Q000502:physiology; D010275:Parasympathetic Nervous System / Q000254:growth & development; D013564:Sympathetic Nervous System / Q000254:growth & development
chemical_list: D000109:Acetylcholine; D009638:Norepinephrine
vernacular_title: Stanovlenie ékstrakardial'nykh vliianiĭ v ontogeneze sobak.