Id http://purl.bioontology.org/ontology/CSP/5004-0085
http://purl.bioontology.org/ontology/CSP/5004-0085
Preferred Name

yolk sac

Definitions
sometimes called vitelline sac; do not confuse with vitelline membrane of the egg; an embryonic membrane formed from endoderm and mesoderm; in reptiles and birds it incorporates the yolk into the digestive tract for nourishing the embryo; in placental mammals it is the source of most of the intestinal mucosa and the site of formation of the germ cells.
Synonyms
vitelline sac
Type http://www.w3.org/2002/07/owl#Class
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