Oestrogen and Progesterone Control the Menstrual Cycle

Question 1

Where are the two hormones produced?

Answer 1

In the ovaries

Question 2

What does oestrogen do?

Answer 2

Causes the lining of uterus to thicken and grow

Stimulates the release of an ovum day 14

Question 3

What does progesterone do?

Answer 3

• maintains lining of uterus. When level of progesterone falls, lining breaks down

Question 4

What happens if a fertilised ovum implants in the uterus (women becomes pregnant)?

Answer 4

Level of progesterone will stay high to maintain the lining of the uterus during pregnancy