title: Atrial septation. II. Formation of the foramina secunda in the chick.
mesh_terms: D000818:Animals; D002470:Cell Survival; D002642:Chick Embryo; D003593:Cytoplasm / Q000648:ultrastructure; D003599:Cytoskeleton / Q000648:ultrastructure; D003896:Desmosomes / Q000648:ultrastructure; D004699:Endocardium / Q000196:embryology / Q000648:ultrastructure; D006003:Glycogen / Q000032:analysis; D006056:Golgi Apparatus / Q000648:ultrastructure; D006325:Heart Atria; D006346:Heart Septum / Q000196:embryology* / Q000648:ultrastructure; D009210:Myofibrils / Q000648:ultrastructure
chemical_list: D006003:Glycogen