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Concept information

Preferred term

Chorion  

Type

  • mesh:Descriptor

Definition

  • 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.

Broader concept

Narrower concepts

In other languages

  • French

  • Membrane chorionique

URI

http://data.loterre.fr/ark:/67375/JVR-PG66MRLG-Q

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