5
Question
(ii) Explain the following methods of contraception giving one example of each:
(a) Barrier method
(b) Chemical method
(c) Surgical method
(a) Barrier method
(b) Chemical method
(c) Surgical method
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Solution
Barrier method:
- This method involves putting up a barrier between the male and the female sex cells (sperms and ova).
- The barrier blocks the sperms from reaching the ovary, thus preventing fertilisation.
- E.g.: Condoms
Chemical method:
- These are chemicals that are applied to the vagina. They stick to the mucous membrane and immobilize and kill sperms. E.g.: Foam tablets, spermicides
Surgical method:
- These are safe and long-term birth control methods that include surgically introducing cuts in the male and/or female reproductive structures.
- Vasectomy involves the cutting and sealing of the Vas Deferens.
- The sperms do not enter the ejaculation stream.
- Tubectomy - permanent method of sterilisation in female.
- In this method, the fallopian tubes are blocked or cut.
- The egg is stopped from travelling to the uterus.
- This method involves putting up a barrier between the male and the female sex cells (sperms and ova).
- The barrier blocks the sperms from reaching the ovary, thus preventing fertilisation.
- E.g.: Condoms
- These are chemicals that are applied to the vagina. They stick to the mucous membrane and immobilize and kill sperms. E.g.: Foam tablets, spermicides
- These are safe and long-term birth control methods that include surgically introducing cuts in the male and/or female reproductive structures.
- Vasectomy involves the cutting and sealing of the Vas Deferens.
- The sperms do not enter the ejaculation stream.
- Tubectomy - permanent method of sterilisation in female.
- In this method, the fallopian tubes are blocked or cut.
- The egg is stopped from travelling to the uterus.
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