Intraembryonic coelom

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Intraembryonic coelom
Days 23
Precursor lateral plate mesoderm
Gives rise to pericardial cavity, pleural cavity, peritoneal cavity
Dorlands/Elsevier c_16/12221052

The intraembryonic coelom (or somatic coelom) is a a portion of the conceptus forming in the mesoderm. During the second week of development, the intermediate mesoderm splits into a dorsal somatic mesoderm (somatopleure) and a ventral splanchnic mesoderm (splanchnopleure). The resulting cavity between the somatopleure and splanchnopleure is called the intraembryonic coelom. This space will give rise to the thoracic and abdominal cavities.

It briefly has a connection with the extraembryonic coelom.

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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
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Week 3 (Trilaminar embryo,
germ layers)
Extraembryonic/uterus
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