Find out when the placenta forms, and how the placenta supports your baby during your pregnancy.

While your baby grows and matures over nine months of pregnancy, there’s something else growing in your uterus — and it’s responsible for keeping your baby alive. You’ve likely already heard of the ...

Cells differentiate into various types of cell and some of them will form the placenta. Around week ten of pregnancy, the placenta begins to access the mother's circulation, obtaining oxygen and ...

A patchwork of genomic differences in the placenta may explain the organ’s “live fast, die young” strategy and its connections to cancer. In 2008, while the medical resident Sam Behjati was doing his ...