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Uberon Ontology

chorioallantoic membrane

Term ID
UBERON:0005335
Synonyms
  • chorioallantois
  • respiratory membrane
Definition
The chorioallantoic membrane is a vascular membrane found in eggs of some amniotes, such as birds and reptiles. It is formed by the fusion of the mesodermal layers of two developmental structures: the allantois and the chorion. Three different layers compose the chorioallantoic membrane; these are called the chorionic epithelium, the mesenchyme and the allantoic epithelium. Blood capillaries and sinuses are found between epithelial cells of the chorionic layer, allowing close contact (within 0.2 Nhttp://en.wikipedia.org/wiki/Chorioallantoic_membrane
References
Ontology
Uberon Ontology
Relationships
develops from
is a type of
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