Mitosis in developing cardiac muscle.
D000818:Animals; D002642:Chick Embryo / Q000254:growth & development; D003593:Cytoplasm; D006321:Heart / Q000196:embryology*; D006352:Heart Ventricles / Q000196:embryology; D008854:Microscopy, Electron; D008938:Mitosis; D009210:Myofibrils