title: Ultrastructure of myocardial cells.
mesh_terms: D000818:Animals; D001485:Basement Membrane; D002467:Cell Nucleus; D004285:Dogs; D006321:Heart / Q000502:physiology; D006329:Heart Conduction System; D006801:Humans; D008247:Lysosomes; D008854:Microscopy, Electron; D008928:Mitochondria; D009119:Muscle Contraction; D009206:Myocardium / Q000166:cytology*; D009210:Myofibrils; D012508:Sarcolemma