title: Epithelial-mesenchymal transformation in chick atrioventricular cushion morphogenesis.
mesh_terms: D000818:Animals; D001283:Atrioventricular Node / Q000196:embryology; D002465:Cell Movement / Q000187:drug effects; D002642:Chick Embryo; D003571:Cytochalasin B / Q000494:pharmacology; D004699:Endocardium / Q000196:embryology; D004847:Epithelial Cells; D006321:Heart / Q000196:embryology*; D006346:Heart Septum / Q000196:embryology; D006351:Heart Valves / Q000196:embryology; D006984:Hypertrophy; D008648:Mesoderm / Q000166:cytology; D008855:Microscopy, Electron, Scanning
chemical_list: D003571:Cytochalasin B