The fetal membranes consist of the chorion, amnion, yolk sac, and allantois. The chorion has three layers: cytotrophoblastic, chorionic connective tissue, and basement membrane. The chorion lies ...

A crucial evolutionary step saw the emergence of amniotic eggs. These eggs developed three extra membranes: the chorion, amnion, and allantois. Together, they formed a complete life support system ...

Tissues suitable for cytogenetic study include placental villi, chorion, amnion, skin, or internal organs such as liver, lung, kidney, or spleen. For early gestation, the entire abortus may be ...

MTF Biologics, a global nonprofit organization that saves and heals lives by advancing tissue and organ donation, transplantation, and research, has awarded more than $1,000,000 in funding to ...