NEET BIOLOGY

Detailed explanation-1: -Ampulla: The major channel in your fallopian tube, located in-between the infundibulum and the isthmus. Fertilization most often takes place in the ampulla.

Detailed explanation-2: -Final answer: The ampulla is the region where fertilization takes place.

Detailed explanation-3: -Contact Between Sperm and Oocyte. Upon ovulation, the oocyte released by the ovary is swept into-and along-the uterine tube. Fertilization must occur in the distal uterine tube because an unfertilized oocyte cannot survive the 72-hour journey to the uterus.

Detailed explanation-4: -The fallopian tubes are bilateral conduits between the ovaries and the uterus in the female pelvis. They function as channels for oocyte transport and fertilization. Given this role, the fallopian tubes are a common etiology of infertility as well as the target of purposeful surgical sterilization.