Match List-I with List-II
| List-I | List-II |
|---|---|
| Birth control methods | Features |
| (A) Diaphragms | (I) Removal of vas deferens |
| (B) Lactational amenorrhea | (II) Increase phagocytosis of sperms |
| (C) Vasectomy | (III) Absence of menstrual cycle and ovulation following parturition |
| (D) IUDs | (IV) Cover the cervix and blocks the entry of sperm |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → (A) - (IV), (B) - (III), (C) - (I), (D) - (II)
(A) Diaphragms — this matches (IV) Cover the cervix and blocks the entry of sperm. A diaphragm is a rubber barrier placed in the female reproductive tract. It covers the cervix during coitus, so sperms cannot pass, and it can be used again.
(B) Lactational amenorrhea — this matches (III) Absence of menstrual cycle and ovulation following parturition. While a mother feeds the baby fully on breast milk, ovulation and the cycle do not start, so the chance of conception is nearly nil. It is effective only up to six months after parturition.
(C) Vasectomy — this matches (I) Removal of vas deferens. It is the sterilisation method for males: a small part of the vas deferens is removed or tied up through a small cut in the scrotum, so sperms cannot leave the body.
(D) IUDs — this matches (II) Increase phagocytosis of sperms. Intra uterine devices are placed in the uterus, where they increase the phagocytosis of sperms; copper IUDs also reduce sperm motility.