The Embryology of the Opossum |
Contents
Introduction | 11 |
The seventh day Stages 14 to 17 33 | 52 |
The eleventh day Stages 30 and 31 | 125 |
4 other sections not shown
Common terms and phrases
albumen allantois amnion amniopore Anat anlage anlagen aorta aortic arch area vasculosa artery become beginning birth blastocyst blastomeres body branchial pouches canal capillary caudal cavity cells cervical chorion cleavage coelom connection copulation cord day Stage Didelphys diverticulum dorsal duct of Cuvier early ectoderm embryo endoderm endoderm mother-cells enlarges Eutheria External distinctive features figure flexure fold forelimb fuse fusion gill pouches glands groove Hartman heart tubes Hensen's node jugular lymph sacs lateral layer limb ridge liver lung lymphatic marsupials medial medullary plate membrane mesenchyme mesoderm mesonephros migration Miscellaneous details nerve nipple notochord omphalomesenteric veins opossum origin otocyst ovum pharynx plexus pole portion postcardinal postcava posterior pulmonary reconstruction region sections Selenka septum shows somites specimens of stage spindle stage 27 stage 30 subcardinal terior thoracic duct tion tubules umbilical vein urinogenital uterus venous ventral vesicle vessels vitelline wall Wistar Institute wolffian duct yolk sac zona