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Leaving certificate biology

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  1. Ecology theory
    5 Topics
    |
    1 Quiz
  2. Unit 1
    Nutrient recycling
    4 Topics
    |
    1 Quiz
  3. Ecological relationships and population dynamics
    2 Topics
  4. Human impact on the ecosystem
    2 Topics
  5. Study of a grassland ecosystem
    3 Topics
  6. Responses in the Flowering Plant
    4 Topics
    |
    1 Quiz
  7. Unit 3
    Sexual reproduction in the flowering plant
    1 Topic
  8. The human reproductive system
    3 Topics
  9. The menstrual cycle
    2 Topics
  10. Pregnancy
    2 Topics
  11. The circulatory system
    4 Topics
  12. Blood
    5 Topics
  13. The heart
    5 Topics
Lesson 8, Topic 3
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The Female reproductive system

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The female reproductive system

The ovaries

  • Produce eggs between the ages of 11 (puberty) and 55 (menopause)
  • They produce the hormones oestrogen and progesterone

The Graafian follicle

  • Produce oestrogen and progesterone
  • Site of the development of the egg

The fallopian tube

  • Collects the egg when it is released from the ovary
  • Contains cilia that move the egg along towards the uterus
  • The egg may be fertilised in the Fallopian tube

Uterus (womb)

  • The site where the embryo or foetus is nourished during pregnancy
  • The wall of the uterus is made of involuntary muscle
  • The lining of the uterus is called the endometrium, which is is a soft, spongy tissue that helps to nourish the embryo

The cervix

  • The neck of the uterus is called the cervix
  • This is the opening through which sperm may enter and out through which the baby is born

The vagina

  • The vagina is a muscular tube in which sperm are placed during intercourse.
  • It is also the route by which the baby is born