Skip to Content

chorionic sac

 

Definition: the outermost fetal membrane in human embryos, the villous part of which becomes the fetal part of the placenta.

Synonym(s): chorionic vesicle

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.

Hide