health

A family doctor explains that all kinds of people visit him in the medical center for check-ups and referrals to specialists. He recalls that he loved science and math at school and always looked forward to the day when he could make a living helping people of all ages stay healthy.

This awe-inspiring video shows of the process of human reproduction from conception to birth. It explains how mitosis and meiosis create genetic variation, how the ovum travels from the ovary to the uterus, how sperm pass the cervix, how one sperm achieves fertilization with the ovum, how the zygote begins cell differentiation, and how the embryo grows into a fetus ready for birth.