the menstrual cycle and hormones

Question 1

what are hormones?

Answer 1

chemicals released directly into the blood

Question 2

what is the pituitary gland?

Answer 2

this produces lots of many important hormones(FSH+LH) which are involved in the menstrual cycle

Question 3

what does fhs do?

Answer 3

1) causes egg to mature in one of the ovaries

2) stimulates the ovaries to produce oestrogen

Question 4

what does oestrogen do?

Answer 4

1) produced in the ovaries
2) causes pituitary gland to produce LH
3) stimulates the release of an egg at round the middle of the cycle