How do different contraceptive methods physically prevent pregnancy?
In short: Explore the biological mechanisms behind hormonal and non-hormonal contraception. This video breaks down how various methods interrupt the processes of ovulation, fertilisation, and implantation.
The video examines hormonal methods that utilise oestrogen to inhibit egg release and progesterone to thicken cervical mucus. Examples include the combined pill, contraceptive patch, injection, implant, and hormonal intrauterine devices (IUD).
It also covers non-hormonal options, such as barrier methods like condoms and diaphragms—which can also help prevent STDs—as well as spermicides and the copper IUD, which works by killing sperm. Surgical options like tubal ligation and vasectomy are also discussed alongside the unreliability of natural methods.
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Sources
- Summary by Intellect · source: GCSE Biology - Contraception | Hormonal vs Non-Hormonal Contraception (2027/28 exams)
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