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Chorion

"Chorion" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure, which enables searching at various levels of specificity.

expand / collapse MeSH information
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.


expand / collapse publications
This graph shows the total number of publications written about "Chorion" by people in this website by year, and whether "Chorion" was a major or minor topic of these publications.
Bar chart showing 5 publications over 5 distinct years, with a maximum of 1 publications in 1982 and 1998 and 2000 and 2002 and 2003
To see the data from this visualization as text, click here.