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controlling fertility (other contraception also use hormones (2)…
controlling fertility
hormones can be used to reduce fertility
2) this may be kind of strange but if oestrogen is taken every day to keep the level of it permanently high it inhibits the production of FSH and after a while egg develops and production stop and stay stopped
3) progesterone also reduces fertility mucus which prevents and sperm getting through and reaching the egg
1)oestrogen can be used to prevent the release of an egg so it can be used as a method off contraception
oestrogen and progesterone can be taken in a pill
the pill is an oral contraception containing oestrogen and progesterone
its over 99% effective at preventing pregnancy but it can cause side effects like headaches and nausea and it doesn't protect against sexually transmitted diseases
other contraception also use hormones
2) contraception implant is inserted under the skin of the arm it releases a continuous of progesterone which stops ovaries releasing eggs
3) the contraception injection also contains progesterone each dose lasts 2-3 months
1) the contraceptive patch contains oestrogen and progesterone its a small 5cm x 5cm patch tat sucks to the skin each patch last one week
40 an intrauterine device is a t shape device that is inserted into the uterus killing all sperm
barriers stop egg and sperm meeting
2) condoms are worm over the penis during intercourse to prevent sperm entering the vagina contraception that will protract against sexually transmitted infections
3)a diaphragm Is a shallow plastic cup that fits over the cervix to form a barrier it has to be used with spermicide
1)non hormonal forms of contraception are designed to stop the sperm from getting to the egg
spermicide can be used alone as a form of contraception but it is not as effective
more drastic ways of preventing pregnancy
natural methods pregnancy can be avoided when the woman knows her cycle
absences not to have sex
sterilisation cutting or tying the fallopian tubes in a female or the sperm duct