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The phases of growth of the Fetus

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The phases of growth of the Fetus

, MD, Saint Louis University Class of Medicine

Once per month, an egg is released from an ovary as a tube that is fallopian. After sexual activity, sperm move through the vagina through the cervix and womb to your fallopian pipes, where one semen fertilizes the egg. The fertilized egg (zygote) divides over 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 hollow ball of cells called a blastocyst.

The blastocyst implants in the wall of the uterus, where it develops into an embryo attached to a placenta and surrounded by fluid-filled membranes inside the uterus.
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