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.
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.
Descriptor ID |
D000482
|
MeSH Number(s) |
A10.615.284.147 A16.254.750.147
|
Concept/Terms |
Allantois- Allantois
- Allantoic Membrane
- Membrane, Allantoic
|
Below are MeSH descriptors whose meaning is more general than "Allantois".
Below are MeSH descriptors whose meaning is more specific than "Allantois".
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