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

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Presentation transcript:

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

Hormonal changes

Summary of fertility hormones

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? Some couples are unable to conceive naturally. This is called infertility. What might be some of the causes of infertility? ovaries not releasing eggs blocked fallopian tubes (carry eggs from the ovaries to the uterus) problems with the uterus lining low sperm count poor quality sperm blocked or damaged tubes that carry sperm MenWomen hormonal problems

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

How does IVF work?

IVF and multiple births Why does IVF increase the chances of multiple births?

Should IVF treatment be free?