chorion
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⧼aaushi-heading-embryology⧽
- outermost fetal membrane containing:
- extraembryonic somatic mesoderm
- trophoblast
- chorionic villi (on maternal surface)
- the chorion becomes part of the definitive placenta as pregnancy progresses
More general terms
Components
References
- ↑ Stedman's Medical Dictionary 27th ed, Williams & Wilkins, Baltimore, 1999