Fetal Development

4. - The inner lining of the uterus where the blastocyst implants.
8. - The ruptured follicle in the ovary that produces progesterone to support implantation.
12. - The outer layer of cells in the blastocyst that will form the placenta.
13. - A hormone that stimulates uterine contractions during labor.
14. - A solid, berry-shaped cluster of cells formed a few days after fertilization.

1. - The process by which the blastocyst attaches to the uterine wall.
2. - A hollow sphere of cells formed after the morula stage, containing the inner cell mass that will become the embryo.
3. - The fluid-filled sac that surrounds and protects the developing embryo/fetus.
5. - The cells formed by the division of the zygote during the cleavage stage.
6. - The developing organism from implantation until the end of the eighth week.
7. - The fertilized egg cell formed by the union of a male and female gamete.
9. - Hormones that also induce uterine contractions and aid in cervical dilation during labor.
10. - The temporary organ formed by the union of maternal and embryonic tissues that nourishes the fetus.
11. - The stage of prenatal development from the ninth week until birth.