MeSH definition : A highly vascularized extra-embryonic membrane, formed by the fusion of the CHORION
and the ALLANTOIS. It is mostly found in BIRDS and REPTILES. It serves as a model
for studying tumor or cell biology, such as angiogenesis and TISSUE TRANSPLANTATION.;
A highly vascularized extra-embryonic membrane, formed by the fusion of the CHORION
and the ALLANTOIS. It is mostly found in BIRDS and REPTILES. It serves as a model
for studying tumor or cell biology, such as angiogenesis and TISSUE TRANSPLANTATION.