Tutorial: Conception, Fetal Development, and Birth
A pregnancy begins with conception, the moment when a male's sperm penetrates and fertilizes a female's egg, and ends when the products of conception leave the mother's body through birth, miscarriage, or abortion.
Select the play button to begin the tutorial, and then use the navigation buttons to pause/stop, continue, or reset the tutorial. View the presentation as often as you would like, and take notes as you follow along. Be sure to set your volume at a reasonable level before you begin.
Self-Check
During which trimester do the brain, heart, and spinal cord develop?The first trimester (0 to 14 weeks)
Just after fertilization, when the sperm has joined with the egg, a new cell is formed; what is the new cell called?A zygote
Between the zygote stage and the fetus stage, what is the new cluster of growing cells called?The embryo
