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Chorion MeSH Descriptor Data 2022


MeSH Heading
Chorion
Tree Number(s)
A10.615.284.473
A16.254.750.473
Unique ID
D002823
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D002823
Scope Note
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.
NLM Classification #
WQ 210
Previous Indexing
Fetal Membranes (1966-1974)
See Also
Chorioallantoic Membrane
Public MeSH Note
78; was see under FETAL MEMBRANES 1963-77
Online Note
search FETAL MEMBRANES 1966-74
History Note
78(75); was see under FETAL MEMBRANES 1963-77
Date Established
1978/01/01
Date of Entry
1999/01/01
Revision Date
2007/07/11
Chorion Preferred
page delivered in 1.422s