Term Name: chorion
Synonyms: chorion (vertebrates), chorion frondosum, chorionic sac, embryonic chorion, fetal chorion, uterine chorion
Definition: the outermost extraembryonic membrane
Ontology: Cell Ontology [UBERON:0003124]

Relationships
develops from: amniotic fold
develops into: chorioallantoic membrane placenta
has parts: chorion frondosum chorion syncytiotrophoblast chorionic ectoderm chorionic membrane mesenchymal stem cell chorionic mesenchyme chorionic plate chorionic trophoblast cell chorionic villus
is a type of: extraembryonic membrane mesoderm-derived structure
inverse disjoint_from: egg chorion