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Glite Dictionary
chorioallantois

chorioallantois

9.9
Thin layer full of blood around a bird or reptile embryo that helps it get oxygen
  • noun
  • /ˌkɔːri.oʊ.əˈlæn.tɔɪs/
  • Specialized
translation icon : corioalantoides
  • The chorioallantois plays a crucial role in gas exchange for a developing chick embryo.

Examples

  • Scientists used the chorioallantois to study blood vessel growth in fertilized eggs.

  • Damage to the chorioallantois can significantly affect embryonic development in birds.

  • The chorioallantois plays a crucial role in nutrient exchange.

  • During development, the chorioallantois forms early in avian embryos.

  • Damage to the chorioallantois can significantly affect embryonic development in birds.

  • The chorioallantois plays a crucial role in gas exchange for a developing chick embryo.

  • Scientists used the chorioallantois to study blood vessel growth in fertilized eggs.

Synonyms

chorioallantoic membrane
vschorioallantois
  • Specialized
9.9

A thin membrane with many blood vessels in bird and reptile eggs that helps the embryo breathe and grow

focuses on the membrane's role in embryonic development in birds and some reptiles

Surface Forms

chorioallantois singular
chorioallantoises plural

Morphology

chorioallantois = chorion + allantois (transparent) = chorion + allantois

The term is a straightforward compound referring to the membrane formed by the chorion and the allantois, so knowing the two base terms directly explains the compound.

Etymology

Chorioallantois comes from two Greek parts: chorion ('membrane') and allantois ('sac'). It names the membrane made when that membrane and sac join in a bird or reptile embryo, which is why the chorioallantois helps with blood vessels and gas exchange during development.