The use of artificial fertility controlling hormones (B1. 2.2 Control in the human body)

Question 1

What can be done in order to reduce fertility?

Answer 1

Using oral contraceptives that contain hormones to inhibit FSH production so that no egg mature.

Question 2

What is the role of oestrogen and progesterone that is in oral contraceptives?

Answer 2

To inhibit egg maturation.

Question 3

The first birth-control pills contained large amounts of oestrogen.
What is the effect of this?

Answer 3

Women suffering significant side effects.

Question 4

What are birth-control pills now like?

Answer 4

Contain a much lower dose of oestrogen than the first birth-control pills.
Or they are progesterone only.

Question 5

What is one advantage of using progesterone-only pills?

Answer 5

They lead to fewer side effects.

Question 6

Which hormones does a fertility drug contain of?

What do they do?

Answer 6

FSH and LH.

They stimulate eggs to mature.

Question 7

Women with which conditions can be given fertility drugs?

Answer 7

Women whose own level of FSH is too low to stimulate eggs to mature.

Question 8

What is the full name of IVF?

Answer 8

In Vitro Fertilisation.

Question 9

What does IVF involve?

Answer 9

Giving the mother FSH and LH to stimulate the maturation of several eggs.

Question 10

What are the steps of IVF?

Answer 10

• The eggs are collected from the mother and fertilised by sperm from the father.
• The fertilised eggs develop into embryos.
• At the stage when they are tiny balls of cells, one or two embryos are inserted in to the mother’s uterus. (womb)