Menstrual Cycle

Question 1

What is ovulation?

Answer 1

The release of an egg from the ovary every 28 days

Question 2

What does the pituitary gland release?

Answer 2

FSH and LH

Question 3

What is the role of FSH?

Answer 3

Stimulates growth and maturation of the egg

Question 4

What is the role of oestrogen?

Answer 4

Thickens the lining of the uterus
Inhibits FSH

Question 5

What is the role of LH?

Answer 5

Triggers ovulation so egg is released

Question 6

What is the role of progesterone?

Answer 6

Maintains the lining of the uterus
Egg gets released if fertilised
Inhibits LH

Question 7

Explain how injections of FSH could increase chance of having a baby.

Answer 7

FSH Stimulates the maturation of eggs for fertilisation

It also stimulates production of oestrogen

Question 8

One type of contraceptive pill keeps the level of progesterone high for most of the cycle.

Answer 8

Progesterone inhibits lh so there is no ovulation

Question 9

Outline two arguments for and two against using hormones as contraceptives.

Answer 9

For: very effective and convenient

Against: unethical due to religion

           Side effects 

           No protection against aids