(Q5105068)
Statements
Identifiers
Chorion
The outermost extra-embryonic membrane surrounding the developing embryo. In REPTILES and BIRDS, it adheres to the shell and allows exchange of gases between the egg and its environment. In MAMMALS, the chorion evolves into the fetal contribution of the PLACENTA. (English)
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Wikipedia(4 entries)
- arwiki مشيمة (بيض)
- enwiki Chorion (egg)
- jawiki 漿膜 (羊膜類)
- nowiki Chorion