Intraembryonic

Some articles on intraembryonic:

Bilaminar Blastocyst - Epiblast Cells During Gastrulation - Intraembryonic Mesoderm Development
... This layer of cells becomes know as intraembryonic mesoderm ... the primitive streak and matured, four divisions of intraembryonic mesoderm are made cardiogenic mesoderm, paraxial mesoderm, intermediate mesoderm and lateral plate mesoderm ...