Experimental study of the formation of the bulboventricular loop in the chick.
D000818:Animals; D002642:Chick Embryo; D004064:Digestive System / Q000196:embryology; D006321:Heart / Q000196:embryology*; D006352:Heart Ventricles / Q000196:embryology; D008648:Mesoderm; D008854:Microscopy, Electron; D009024:Morphogenesis; D009040:Motion Pictures; D009206:Myocardium / Q000166:cytology; D010781:Photography