An electron microscopic study on the innervation of the trout heart.
D000818:Animals; D001369:Axons; D003594:Cytoplasmic Granules; D005399:Fishes; D005724:Ganglia; D006329:Heart Conduction System / Q000166:cytology*; D006352:Heart Ventricles / Q000294:innervation; D008854:Microscopy, Electron; D009206:Myocardium / Q000166:cytology; D009210:Myofibrils