"Yolk Sac" 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.
The first of four extra-embryonic membranes to form during EMBRYOGENESIS. In REPTILES and BIRDS, it arises from endoderm and mesoderm to incorporate the EGG YOLK into the DIGESTIVE TRACT for nourishing the embryo. In placental MAMMALS, its nutritional function is vestigial; however, it is the source of INTESTINAL MUCOSA; BLOOD CELLS; and GERM CELLS. It is sometimes called the vitelline sac, which should not be confused with the VITELLINE MEMBRANE of the egg.
Descriptor ID |
D015017
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MeSH Number(s) |
A10.615.284.981 A16.254.750.981 A16.331.800
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Concept/Terms |
Yolk Sac- Yolk Sac
- Sac, Yolk
- Sacs, Yolk
- Yolk Sacs
- Vitelline Sac of Embryo
- Embryo Vitelline Sac
- Embryo Vitelline Sacs
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Below are MeSH descriptors whose meaning is more general than "Yolk Sac".
Below are MeSH descriptors whose meaning is more specific than "Yolk Sac".
This graph shows the total number of publications written about "Yolk Sac" by people in this website by year, and whether "Yolk Sac" was a major or minor topic of these publications.
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Year | Major Topic | Minor Topic | Total |
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2004 | 1 | 0 | 1 |
2016 | 1 | 0 | 1 |
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Below are the most recent publications written about "Yolk Sac" by people in Profiles.
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Yolk Sac Macrophages, Fetal Liver, and Adult Monocytes Can Colonize an Empty Niche and Develop into Functional Tissue-Resident Macrophages. Immunity. 2016 Apr 19; 44(4):755-68.
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The chicken yolk sac IgY receptor, a functional equivalent of the mammalian MHC-related Fc receptor, is a phospholipase A2 receptor homolog. Immunity. 2004 May; 20(5):601-10.
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Vertical transmission of mouse hepatitis virus infection in mice. Jpn J Exp Med. 1978 Dec; 48(6):481-90.