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The Stages of growth of the Fetus

2019年11月1日 评论已被关闭

The Stages 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 and over repeatedly since it moves down the tube that is fallopian the uterus. First, the zygote turns into a good ball of cells. Then it turns into a ball that is hollow of known as a blastocyst. 阅读全文…

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