Intraembryonic coelom
Intraembryonic Coelom
The Intraembryonic coelom (pronunciation: /ɪnˌtrɑː.ɛmˈbraɪ.ɒnɪk ˈsiːləm/) is a significant structure that forms during the embryonic development of vertebrates. The term originates from the Greek words 'intra' meaning 'within', 'embryo' referring to the early developmental stage, and 'coelom' meaning 'cavity'.
Formation
The Intraembryonic coelom forms during the third week of embryogenesis. It arises from the lateral plate mesoderm, which splits into two layers: the somatic (parietal) mesoderm and the splanchnic (visceral) mesoderm. The space that forms between these two layers is the intraembryonic coelom.
Function
The Intraembryonic coelom serves as the primordial space for the formation of the body cavities, including the pericardial cavity, the pleural cavities, and the peritoneal cavity.
Related Terms
- Embryogenesis: The process by which the embryo forms and develops.
- Mesoderm: One of the three primary germ layers in the very early embryo.
- Pericardial cavity: The potential space formed within the fibrous pericardium.
- Pleural cavity: The potential space between the two pleurae of the lungs.
- Peritoneal cavity: The potential space between the parietal peritoneum and visceral peritoneum.
External links
- Medical encyclopedia article on Intraembryonic coelom
- Wikipedia's article - Intraembryonic coelom
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