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Flashcards · Biology · Hormones and Reproduction

Hormones and the Menstrual Cycle (Higher tier)

16 cards

  1. What does FSH stand for?

    Follicle stimulating hormone.

  2. What does LH stand for?

    Luteinising hormone.

  3. Where are FSH and LH made?

    In the pituitary gland.

  4. What does FSH do?

    Makes a follicle mature, and stimulates oestrogen production.

  5. What does LH do?

    Causes ovulation.

  6. What does a surge of LH cause?

    Ovulation, at about day 14.

  7. What triggers the LH surge?

    A high level of oestrogen.

  8. What does oestrogen inhibit?

    FSH.

  9. What does progesterone inhibit?

    FSH and LH.

  10. What makes progesterone?

    The empty follicle in the ovary.

  11. What does progesterone do to the lining?

    Maintains it.

  12. What causes menstruation?

    A fall in the level of progesterone.

  13. Why do the hormones stop more eggs maturing?

    Progesterone and oestrogen inhibit FSH.

  14. What happens to FSH when progesterone falls?

    It is no longer inhibited, so it rises.

  15. When do progesterone levels peak?

    About day 21.

  16. Common mistake about LH?

    Saying that LH makes oestrogen. FSH stimulates the ovary to make oestrogen, and LH causes ovulation.