Extraembryonic

Some articles on extraembryonic:

Human Embryogenesis - Cavity Formation
... This matrix is called the extraembryonic reticulum ... migrate along the outer edges of this reticulum and form the extraembryonic mesoderm, which makes it difficult to maintain the extraembryonic reticulum ... coalesce to form the chorionic cavity or extraembryonic coelom ...
Extra-embryonic Coelom
... The extraembryonic coelom (or Chorionic cavity) is a portion of the conceptus consisting of a cavity between Heuser's membrane and the Trophoblast ... mesenchymal cells that fill the space between Heuser's membrane and the Trophoblast, forming the extraembryonic mesoderm ... development progresses, small lacunae begin to form within the extraembryonic mesoderm which become larger and form the extraembryonic coelom ...
Body Cavity - Coelom
... embryos develop two coelomic cavities the intraembryonic coelom and the extraembryonic coelom (or chorionic cavity) ... and splanchnic lateral plate mesoderm, while the extraembryonic coelom is lined by extraembryonic mesoderm ...
Bilaminar Blastocyst - Formation of The Yolk Sac and Chorionic Cavity
... While the primary yolk sac is forming, extraembryonic mesoderm makes its way into the blastocyst cavity to fill it with loosely packed cells ... When the extraembryonic mesoderm is separated into two portions, a new gap arises called the chorionic cavity, or the extra-embryonic coelom ... When the extraembryonic mesoderm splits into two layers, the amnion, yolk sac, and chorion follow its lead and also become double layered ...
Inner Cell Mass - Further Development
... Trophectoderm cells form extraembryonic tissues, such as the placenta, which act in a supporting role for the embryo proper ... The hypoblast contributes to extraembryonic membranes and the epiblast will give rise to the ultimate embryo proper as well as some extraembryonic tissues ...