• Like
New life
Upcoming SlideShare
Loading in...5

Thanks for flagging this SlideShare!

Oops! An error has occurred.



  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Be the first to comment
    Be the first to like this
No Downloads


Total Views
On SlideShare
From Embeds
Number of Embeds



Embeds 0

No embeds

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

    No notes for slide


  • 1. NEW LIFE © PDST Home Economics
  • 2. New Life  A baby begins as a single cell within a mother.  The cell forms when an egg (ovum) from the mother is fertilized by a sperm from the father
  • 3. Female reproductive System  Ovaries  Fallopian tubes  Uterus (Womb)  Cervix  Vagina
  • 4. Menstrual Cycle  The menstrual cycle begins @ about 12 yrs and stops about 55yrs  On average it takes 28 days  It begins with menstruation (a period) which lasts about 5 days during which time the old lining of the uterus is removed from the body.  This lining starts to build up again and at about day 14 an egg is released from an ovary (ovulation).  The egg travels down the fallopian tubes and if fertilised pregnancy begins  If the egg is not fertilised it dies.  At day 28 if pregnancy has not happened the egg and uterus lining break down and the cycle begins again.
  • 5. Menstrual Cycle
  • 6. Male Reproductive System  Testes  Scrotum  Sperm ducts  Penis
  • 7. Sexual Intercourse  To create a baby a sperm must fertilise an egg inside the mother.  During sexual intercourse the males penis becomes stiff because the tissue its made from fills with blood  It is then possible to insert it into the female vagina.  During ejaculation a liquid called semen which contains millions of sperm are released into the females vagina
  • 8. Fertilisation  The sperm swim up through the cervix, the uterus and the fallopian tubes.  If an egg is in a fallopian tube one sperm cell will fertilise the egg. (fertilisation, conception)  The fertilised egg will travel down into the womb and stick onto the lining on the side of the womb
  • 9. Pregnancy / Gestation  Lasts 40 weeks  Egg develops into embryo  Embryo is surrounded in womb by a liquid called amniotic fluid  The liquid is inside a bag called the amniotic sac.  Outside the sac is the placenta which filters oxygen and food from the mothers blood for the embryo  Some harmful substances can get through the placenta so mothers must avoid alcohol medicine, nicotine and other drugs during pregnancy.  8 weeks after fertilisation the embryo looks more like a baby and is then called a foetus  The foetus is connected to the placenta by the umbilical cord
  • 10. Pregnancy / Gestation
  • 11. Birth  A few days before birth , baby turns so that its head lies next to cervix.  The walls of the womb begin to contract – labour pains.  The membrane around baby breaks and the amniotic fluid is released – waters break.  Contractions force baby through cervix and vagina and out of the mother.  The final contraction pushes out the placenta (afterbirth).  The umbilical cord is cut and clamped, after a few days the part attached to the baby shrivels , falls off and leaves the navel (bellybutton).
  • 12. Birth