title: [GENESIS OF THE MYOFIBRILS OF THE CHICK EMBRYO HEART OBSERVED WITH THE ELECTRONIC MICROSCOPE AND BEGINNING OF THE CONTRACTILE ACTIVITY].
mesh_terms: D000715:Anatomy; D002642:Chick Embryo; D004583:Electrons; D004626:Embryology; D006321:Heart; D008853:Microscopy; D008854:Microscopy, Electron; D009119:Muscle Contraction; D009210:Myofibrils; D010827:Physiology; D012106:Research
keywords: ANATOMY; CHICK EMBRYO; EMBRYOLOGY; EXPERIMENTAL LAB STUDY; HEART; MICROSCOPY, ELECTRON; PHYSIOLOGY
vernacular_title: GENESI DELLE MIOFIBRILLE DEL CUORE EMBRIONALE DI POLLO OSSERVATE AL MICROSCOPIO ELETTRONICO E INIZIO DELL'ATTIVIT'A CONTRATTILE.