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Extraembryonic coelom |
| Extraembryonic coelom | ||
|---|---|---|
| Carnegie stage | 6a | |
| Days | 12 | |
| Precursor | Heuser's membrane | |
| Dorlands/Elsevier | c_44/12247640 | |
The extraembryonic coelom is a portion of the conceptus consisting of a cavity between Heuser's membrane and the hypoblast.
It divides the two layers of extraembryonic mesoderm (splanchnopleuric and somatopleuric).
It is also known as the "chorionic cavity".[1]