In the early embryo, there is a cascade of cellular movement, and all of those cells have to move to the right position to ensure that the organism will form properly. Some cells are just pushed to ...

Different cell types - say, heart, liver, blood, and sperm cells - possess characteristics that help them carry out their unique jobs in the body. In general, those characteristics are hard-wired.

What are germ cell and sex cord stromal cells? Germ cells and sex cord stromal cells form when a fetus (baby) is developing. A fetus is made from a sperm cell and an egg cell. Germ cell tumors (GCTs) ...