Human Reproduction

By Ibon100

  • Fertilisation

    Fertilisation
    Fertilisation is the fusion of a male and a female gamete.

  • Implantation

    Implantation
    Implantation is when the ovule implanted in the uterus.

  • First Trimester

    First Trimester
    During the second week, the embryo is surrounded by the amniotic sack. The embryo produces an organ called the placenta.

  • Second Trimester

    Second Trimester
    During this period the embryo is called a foetus

  • Third trimester

    Third trimester
    At the end of the seventh month , the foetus organs are already sufficiently developed for it to survive outside the mother. When he has ninth months it´s ready to be born

  • Birth

    Birth
    Just before the baby is born, the bag of amniotic fluid arount it bursts. This is called the breaking of the waters. Contractions of the uterus force the baby out. This is called labour. After the baby is born the umbilical cord is clamped and then cut

  • Afterbirth

    Afterbirth
    About fifteen minutes after the birth the placenta is deliverd. This is the afterbirth