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  • When egg is fertilized in female

    • Sperm and egg fertilization process...

    Human fertilization

    Union of a human egg and sperm

    Human fertilization is the union of an egg and sperm, occurring primarily in the ampulla of the fallopian tube.[1] The result of this union leads to the production of a fertilized egg called a zygote, initiating embryonic development.

    Scientists discovered the dynamics of human fertilization in the 19th century.[2]

    The process of fertilization involves a sperm fusing with an ovum.

    How long does the egg stay in the fallopian tube

  • How long does the egg stay in the fallopian tube
  • 4 stages of implantation
  • Sperm and egg fertilization process
  • Where does fertilization take place in female
  • How long does it take the egg to travel from the ovary to the uterus

    • The most common sequence begins with ejaculation during copulation, follows with ovulation, and finishes with fertilization. Various exceptions to this sequence are possible, including artificial insemination, in vitro fertilization, external ejaculation without copulation, or copulation shortly after ovulation.[3][4] Upon encountering the secondary oocyte, the acrosome of the sperm produces enzymes which allow it to burrow through the outer shell called the zona pellucida of the egg.

    The sperm plasma then fuses with the egg's plasma membrane and their nuclei fuse, triggering the sperm head to disconnect f

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