Observations on adrenergic innervation of dog heart.
D000818:Animals; D004285:Dogs; D006321:Heart / Q000294:innervation*; D006329:Heart Conduction System; D006651:Histocytochemistry; D008856:Microscopy, Fluorescence; D009411:Nerve Endings; D009638:Norepinephrine; D010210:Papillary Muscles / Q000033:anatomy & histology; D013564:Sympathetic Nervous System / Q000033:anatomy & histology*
D009638:Norepinephrine