Higher: glucagon and the menstrual cycle

The idea

When blood glucose falls, the pancreas releases glucagon, which makes the liver convert glycogen back into glucose. In the menstrual cycle, FSH from the pituitary makes an egg mature and stimulates the ovaries to produce oestrogen. Oestrogen thickens the uterus lining, inhibits FSH and stimulates LH. LH triggers ovulation. Progesterone maintains the uterus lining and inhibits FSH and LH.

1. Name each hormone's source and effect.
2. Show how hormones control each other.
3. Link to the stages of the cycle.

Watch out Insulin and glucagon have opposite effects: glucagon raises blood glucose.