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How Deep Does Sperm Need to Travel to Fertilize an Egg?

Learn how sperm reaches the egg in the fallopian tube to achieve pregnancy, including the journey through the cervix and uterus.

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Video transcript

To achieve pregnancy, sperm must reach the egg in the woman's fallopian tube. This typically involves sperm traveling through the cervix and uterus before reaching the fallopian tube. During ejaculation, millions of sperm are deposited near the cervix, and they swim through the uterus to reach the fallopian tubes, where fertilization can occur. Even a single sperm cell reaching the egg can result in pregnancy.

Questions and answers

  1. Where does fertilization of the egg usually occur?

    Fertilization typically occurs in the woman’s fallopian tube after sperm travel through the cervix and uterus.

  2. Can pregnancy happen if only one sperm reaches the egg?

    Yes, even a single sperm cell reaching and fertilizing the egg can result in pregnancy.

  3. How do sperm travel through the female reproductive system?

    Sperm swim from the cervix through the uterus and into the fallopian tubes to meet the egg.

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