Browser Not Supported.

IE users: please get the latest browser version at Microsoft Internet Explorer Home Page

if yot already have the latest browser version please verify that your browser settings is not in compatibility mode

Browser: unknown
Version: 0

EMBRYONIC DEVELOPMENT & STEM CELL COMPENDIUM
Content
All Anatomical Compartments > Compartment Card
Trophoblast >

Extraembryonic Ectoderm


Trp.ExE
The extraembryonic ectoderm (ExE) is formed following implantation as cells from the polar trophectoderm proliferate. The process involves thickening of the polar trophectoderm, which grows into a thick compact column of extraembryonic ectoderm that extends into the blastocoel, with its distal part juxtaposed with the compact epiblast. Both the ExE and the epiblast are enveloped by the visceral endoderm. The ExE later forms the chorionic ectoderm and is the source of undifferentiated trophoblast stem cells, which, in the mouse embryo, contribute to the ectoplacental cone and to the mature placenta. The ExE is also essential for the induction of primordial germ cells in mice.
Extraembryonic Ectoderm
Multiple Ancestors Single Ancestor No Descendants Develops from Part of Parent