, MD, Saint Louis University Class of Medicine
Once per month, an egg is released from an ovary into a tube that is fallopian. After sexual activity, sperm move through the vagina through the cervix and womb into the fallopian pipes, where one semen fertilizes the egg. The fertilized egg (zygote) divides over and over repeatedly because it moves along the fallopian tube to the womb. First, the zygote turns into a ball that is solid of. Then it becomes a ball that is hollow of known as a blastocyst.
In the womb, the blastocyst implants within the wall surface for the womb, where it develops into an embryo mounted on a placenta and surrounded by fluid-filled membranes.
At 2 months of being pregnant, the placenta and fetus are developing for 6 days. The placenta kinds tiny projections that are hairlike) that stretch in to the wall associated with womb.Continue reading