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Controlling Fertility. Lesson objectives – to know that hormones can be used to control fertility. WALT: how hormones can be used to control fertility. All will be able to recall how oral contraceptives inhibit FSH Most will be able to describe how FSH can be used to produce mature eggs

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Controlling fertility

Controlling Fertility

Lesson objectives – to know that hormones can be used to control fertility


Walt how hormones can be used to control fertility
WALT: how hormones can be used to control fertility

  • All will be able to recall how oral contraceptives inhibit FSH

  • Most will be able to describe how FSH can be used to produce mature eggs

  • Some will be able to explain how FSH is used in IVF treatment




Contraception
Contraception

  • Most widely used is female oral contraceptive.

  • Contains hormones, particularly oestrogen, which inhibits FSH release from the pituitary..

  • No eggs – no babies


What is infertility

Women

Men

What is infertility?

Some couples are unable to conceive naturally. This is called infertility. What might be some of the causes of infertility?

ovaries not releasing eggs

low sperm count

blocked fallopian tubes (carry eggs from the ovaries to the uterus)

poor quality sperm

problems with the uterus lining

blocked or damaged tubes that carry sperm

hormonal problems

hormonal problems


How do fertility drugs work
How do fertility drugs work?

FSH memo

To: ovary

From: fertility drug

Get another egg ready and start making oestrogen.

Fertility drugs are used to help women who do not produce an egg every month.

There are many different types of fertility drug but they all work by tricking the body into producing more eggs.

Some fertility drugs contain FSH. How do these work?


What is ivf
What is IVF?

Sometimes, women have problems becoming pregnant even after using fertility drugs. When this happens, they can try in vitro fertilization, or IVF.

In vitro is Latin for ‘in glass’ so IVF means fertilization that takes place outside of the body and in laboratory glassware.

Babies born by IVF are sometimes called ‘test-tube’ babies. However, fertilization doesn’t take place in test-tubes but in a special dish.



Ivf and multiple births
IVF and multiple births

Why does IVF increase the chances of multiple births?