In which structure of the female reproductive tract is the human egg fertilized?

• A. Uterus
• B. Fallopian tube
• C. Vagina
• D. Ovary

Answer: (B)

Fertilization happens in the fallopian tube, the site where sperm and egg meet after ovulation. After the egg is released from the ovary, fimbriae guide it into the tube, and sperm travel up the reproductive tract to encounter it, typically in the ampulla, the portion of the tube where conditions support fusion of genetic material. The uterus is where a fertilized egg implants and grows, not where fertilization occurs. The vagina is a canal through which sperm travel to reach the uterus, but the actual fertilization event takes place in the fallopian tube. The ovary releases the egg but does not provide the environment for fertilization.