Extraembryonic coelom

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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]

[edit] References

  1. ^ week2

[edit] External links

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Developmental biology > Human embryogenesis (development of embryo) and development of fetus (some dates are approximate - see Carnegie stages and a timeline)
Week 1
Week 2
Week 3 (Trilaminar embryo,
germ layers)
Extraembryonic/uterus
Histogenesis
Organogenesis