title: T-tubes in cultured mammalian myocardial cells.
mesh_terms: D000818:Animals; D002478:Cells, Cultured; D004721:Endoplasmic Reticulum / Q000648:ultrastructure; D006352:Heart Ventricles; D007365:Intercellular Junctions / Q000648:ultrastructure; D009024:Morphogenesis; D009200:Myocardial Contraction; D009206:Myocardium / Q000648:ultrastructure*; D009210:Myofibrils / Q000648:ultrastructure; D051381:Rats; D012508:Sarcolemma / Q000648:ultrastructure*; D013997:Time Factors