Pregnancy is a time full of wonder, excitement, and sometimes a bit of worry. The amniotic sac is one of the most fascinating parts of this journey. It is a thin but strong membrane that naturally ...

Microscopy image of a PGA at day 8 showing the early tissues supporting the embryo, including the amniotic sac and the yolk sac-like structures, surrounded by (extra-embryonic) mesoderm tissue.

Researchers at the Francis Crick Institute have developed a new stem cell model of the mature human amniotic sac, which replicates development of the tissues supporting the embryo from two to four ...