Contraception - Diaphragm & IUDs
Biology: AQA GCSE Higher, topic 5.3.27
Diaphragm and Intrauterine Devices
Some contraceptive methods work by being inserted into the woman's body:
Diaphragms
- A diaphragm is a shallow plastic cup, which is inserted into the vagina prior to sexual intercourse and sits at the entrance to the uterus.
- It is designed to prevent the sperm from reaching the egg.
- It can also be covered in a spermicide to kill the sperm.
Intrauterine devices (IUDs)
- This is also known as the coil.
- They are small t-shaped devices that are inserted into the uterus.
- They work by preventing implantation of an embryo (fertilised egg).
- Some intrauterine devices also release progesterone.
Test yourself on Contraception - Diaphragm & IUDs
Which hormone is released by some intrauterine devices?
What substance can be added to a diaphragm to kill sperm?
Why must a diaphragm be inserted into the vagina before sexual intercourse takes place?
What is one advantage of covering a diaphragm with spermicide, in addition to its physical barrier action?