Legal Definitions - in vivo fertilization

Definition: In vivo fertilization is the process of fertilizing an egg inside a woman's body.

Examples: In vivo fertilization occurs during sexual intercourse when sperm from a man's semen enters a woman's reproductive system and fertilizes an egg. This is different from artificial insemination, in vitro fertilization, zygote intrafallopian transfer, and gamete intrafallopian transfer, which all involve fertilization outside of the woman's body.

Explanation: In vivo fertilization is a natural process that occurs during sexual intercourse. The sperm travels through the woman's reproductive system and fertilizes an egg in the fallopian tube. This fertilized egg then implants in the uterus and develops into a fetus. The other methods of fertilization mentioned involve medical intervention and fertilization outside of the woman's body.