In an ectopic pregnancy, the fertilized ovum is most commonly implanted in the fallopian tube.

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

Answer: (A)

An ectopic pregnancy occurs when the fertilized egg implants somewhere outside the uterine cavity, and the fallopian tube is the place where this happens most often, typically in the ampulla. This happens because the embryo is traveling toward the uterus but tubal damage or dysfunction can trap it in the tube, where the tissue isn’t equipped to support pregnancy. As a result, an ectopic pregnancy in the tube can rupture and cause life-threatening bleeding if not addressed promptly. The cervix and ovary are much less common sites for ectopic implantation, and the uterus is the normal implantation site for a viable pregnancy.