Contraception (OCR GCSE Biology A, Combined (Gateway Science Suite)): Flashcards

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Contraception
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Hormones in mixed contraceptive pill

Oestrogen and progesterone

Hormone inhibited by mixed pill to prevent egg maturation

FSH

Advantage of progesterone only pill vs mixed pill

Fewer side effects

Hormones in contraceptive patch

Oestrogen and progesterone

Duration of contraceptive patch

One week

Hormone released by contraceptive implant

Progesterone

Duration of contraceptive implant

Three years

Hormone in contraceptive injection

Progesterone

Duration of contraceptive injection

2 to 3 months

Hormone released by plastic IUD

Progesterone

Effectiveness of spermicides

70% to 80%

Additional benefit of condoms besides contraception

Prevent sexually transmitted diseases

What copper IUD does to sperm

Kills sperm in uterus

Duration of sterilisation contraception

Forever

What diaphragm is used with

Spermicide

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