EMBRYONIC DEVELOPMENT & STEM CELL COMPENDIUM
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Extraembryonic Mesoderm
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Extraembryonic Mesoderm
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Extraembryonic Mesoderm Cells (ExM)


ExM.ExM.ExMCs
Extraembryonic mesoderm cells are cells that loosely fill the blastocyst cavity.

day 9 in humans. Complex origin in humans. In mouse, these cells are considered to originate only in the primitive streak.
CS10 - CS11
Extraembryonic Mesoderm Cells
Multiple Ancestors Single Ancestor No Descendants Develops from Part of Parent