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Allantois

"Allantois" 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.

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An extra-embryonic membranous sac derived from the YOLK SAC of REPTILES; BIRDS; and MAMMALS. It lies between two other extra-embryonic membranes, the AMNION and the CHORION. The allantois serves to store urinary wastes and mediate exchange of gas and nutrients for the developing embryo.


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