The correct answer is Option (2) → A-IV, B-III, C-I, D-II
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LIST I
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LIST II
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Birth control methods
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Features |
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A. Diaphragms
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IV. Cover the cervix and blocks the entry of sperm
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B. Lactational amenorrhea
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III. Absence of menstrual cycle and ovulation following parturition
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C. Vasectomy
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I. Removal of vas deferens |
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D. IUDS
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II. Increase phagocytosis of sperms |
- Diaphragms, cervical caps and vaults are barriers made of rubber that are inserted into the female reproductive tract to cover the cervix during coitus. They prevent conception by blocking the entry of sperms through the cervix. They are reusable.
- Lactational amenorrhea (absence of menstruation) method is based on the fact that ovulation and therefore the cycle do not occur during the period of intense lactation following parturition. Therefore, as long as the mother breast-feeds the child fully, chances of conception are almost nil. However, this method has been reported to be effective only upto a maximum period of six months following parturition.
- Surgical intervention blocks gamete transport and thereby prevent conception. In vasectomy, a small part of the vas deferens is removed or tied up through a small incision on the scrotum whereas in tubectomy, a small part of the fallopian tube is removed or tied up through a small incision in the abdomen or through vagina. These techniques are highly effective but their reversibility is very poor.
- An effective and popular method of contraception is the use of Intra Uterine Devices (IUDs). These devices are inserted by doctors or expert nurses in the uterus through the vagina. These Intra Uterine Devices are presently available as the non-medicated IUDs (e.g., Lippes loop), copper-releasing IUDs (CuT, Cu7, Multiload 375) and the hormone-releasing IUDs (Progestasert, LNG-20).
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