As division continues, some cells divide into the growing mass, distinguishing cells that form the embryo (epiblast) from those that form the placenta (trophectoderm). Further cell divisions lead to ...

A video that medical experts say is inaccurate could be used as the standard for some Iowa students’ growth and development ...

The young embryo may survive this exposure ... reveals for the first time that the harmful effects of alcohol on fetal ...

Chorionic villus sampling (CVS) is a newer and slightly more risky alternative to amniocentesis that is performed earlier in the course of development ... of the early embryo, the villus cells ...