title: Aspects of the ultrastructure of the alimentary canal and respiratory ducts in Xenopus laevis larvae.
mesh_terms: D000818:Animals; D001001:Anura / Q000033:anatomy & histology*; D007422:Intestines / Q000166:cytology* / Q000196:embryology; D007814:Larva / Q000033:anatomy & histology; D008854:Microscopy, Electron; D010614:Pharynx / Q000166:cytology* / Q000196:embryology; D012137:Respiratory System / Q000166:cytology* / Q000196:embryology