Human reproduction

By Javi Marco

  • Fertlisation

    Fertlisation
    Fertilisation occurs when the sperm and the ovule fuses. The single cell is called zygote. An egg must be present in one of the fallopian tube for fertilisation

  • Implantation

    Implantation
    Is when the zygote is implanted in the endometrium

  • Pregnancy

    Pregnancy
    The human baby takes about forty weeks to develop in the womb. By the end of eight weeks, all the tissues and organs are formed. The embryo is three cm long and weighs only four grams.

  • Childbirth

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