Flashcards · Biology · Hormones and Reproduction
Contraception
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What is contraception?
A way of preventing pregnancy.
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What hormones are in the combined pill?
Oestrogen and progesterone.
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How does the pill stop ovulation?
It keeps FSH and LH low, so no egg matures or is released.
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How does progesterone affect the mucus?
It makes it thicker, so sperm cannot get through.
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How does hormonal contraception affect the lining?
It keeps the lining thin.
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Name three hormonal methods.
Any three from: the pill, patch, injection, implant and IUS.
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What does a condom do?
Stops sperm from entering the vagina.
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Which method protects against STIs?
Condoms.
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What does a diaphragm do?
Covers the cervix, and is used with spermicide.
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How does a copper IUD work?
The copper kills sperm and stops implantation.
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What is sterilisation?
An operation that is intended to be permanent.
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What is a side effect of hormonal contraception?
Headaches, mood changes, or a small risk of blood clots.
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Which method is the most effective in the data?
The implant.
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Why is a condom less effective than an implant in the data?
It must be used correctly each time.
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Do hormonal methods protect against STIs?
No.
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Common mistake about the pill?
Saying that it kills sperm. It stops ovulation.