Why might couples use contraception?
Sometimes fertilisation of an egg is not always desired by a couple having sexual intercourse so they would use a method of contraception.
How many methods of contraception can you think of and what are they called?
4
Natural method, chemical method, mechanical method, surgical method.
What is the natural method of contraception
This depends on the woman knowing her menstrual cycle and not having sexual intercourse during the time of the month when an egg is in her oviduct.
When is an egg in the woman’s oviduct
After ovulation (day 14) (egg is released)
Why is the natural method not always reliable?
Periods may not be regular.
Egg may be released early or late.
The couple may still end up having intercourse.
What is the chemical method of contraception?
The pill contains hormones which prevent ovulation taking place (egg not released). Therefore no egg is released during the woman’s monthly cycle.
How often does the woman take the pill?
One pill once a day. At the same time each day.
What are some side effects of the pill?
Weight gain, mood swings , depression, increased risk of heart attack and stroke
Why are women at increased risk of heart attacks or strokes while on the pill?
Due to increased risk of blood clots.
How long should the woman take the pill for before stopping?
21 days then don’t 5ams for a week then start again.
What is the mechanical method of contraception?
This relies on preventing sperm and egg meeting.
What are 2 examples of the mechanical method and how do they work?
The condom - this provides a complete barrier between the penis and vagina to prevent sperm entering the woman’s body.
The diaphragm - this is a circle of rubber inserted into the top of the vagina to prevent the sperm travelling into the uterus and oviducts.
What else can a condom prevent
STIs (sexually transmitted infections)
What is the surgical method of contraception?
When a couple has had as many children as they want, they may decide that one of them should have surgery to ensure that they will not have anymore. This is called sterilisation.
What is the surgical method for males
In males the operation is called a vasectomy and involves cutting the tubes that carry the sperm.
What is the surgical method for females
In females the oviducts are cut and sealed so no sperm can reach the eggs.
What are some methods of contraception
What are the advantages and disadvantages of the contraceptive pill
What are the advantages and disadvantages of the contraceptive implant
What is a disadvantage of a condom and diaphragm
Unreliable if not used properly.
What is an advantage of the condom and diaphragm
Easily obtained. Protects against STIs (e.g. HIV).
What is an advantage of a vasectomy
Virtually 100% reliable.
What is a disadvantage of a vasectomy
Difficult or impossible to reverse.
What is an advantage of female sterilisation
Virtually 100% reliable.
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Blood And Circulation49
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Naming Vessels, Arteries And Veins11
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Health Fitness20
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Types Of Diseases And How They Spread22
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Aseptic Technique21
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How The Human Body Prevents And Stops Pathogen Invasions12
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How The Human Body Prevents Pathogens Invading 212
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Epidemiology And Vaccinations25
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Antibiotics, Resistance And Superbugs13
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Reproduction2
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Contraception25
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Secually Transmitted Diseases12
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Variation2
