| chorioallantois |
very vascular fetal membrane composed of the fused chorion and adjacent wall of the allantois
출처: wordnet.princeton.edu/perl/webwn
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| chorioallantois |
The allantoic vesicle expands into the coelom and fuses with serosa to become a vascular exchange membrane called the chorioallantois. Gaseous exchange will occur through this membrane rather than through the yolk sac. The chorioallantois has an endodermal lining and mesodermal covering.
출처: www.suu.edu/sci/biology/classes/embryology/Quiz/gu...
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