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where does fertilization take place

Fertilization (in humans) usually takes place in the fallopian tube , specifically in a widened section called the ampulla , which curves around the ovary.

Quick Scoop

  • In natural conception, sperm travel up through the vagina, cervix, and uterus into the fallopian tubes.
  • The egg is released from the ovary (ovulation) and is swept into the fallopian tube by finger‑like fimbriae.
  • The actual fusion of sperm and egg — fertilization — happens in the outer third of the fallopian tube (the ampulla).
  • The fertilized egg (zygote) then travels down to the uterus over a few days and may implant into the uterine lining, starting a pregnancy.

Special case: IVF and lab methods

  • In procedures like IVF (in vitro fertilization), fertilization happens outside the body in a lab dish, and the resulting embryo is later transferred into the uterus.

So when you ask “where does fertilization take place,” the standard answer in biology class is: in the ampulla of the fallopian tube , not in the uterus or ovary.

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