Question

Mention the function of trophoblast in the human embryo

Answer 1

Trophoblast:

1. Trophoblasts are the cells that make up the blastocyst's outer layer, which nourishes the embryo and later becomes a significant portion of the placenta. During the early stages of pregnancy, they are the first cells that differentiate from the fertilized egg.
2. They are essential for implantation and establishing maternal-fetal interaction.
3. When the blastocyst embeds itself in the endometrium, it divides into two layers: the cytotrophoblast (inner) and the syncytiotrophoblast (outer). The syncytiotrophoblast invades the mother's endometrium, making it more invasive than any tumor tissue.