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3.Reproductive Health
medium
$Cu$ ions released from copperreleasingintrauterine devices $(IUDs)$
A
make uterus unsuitable for implantation
B
increase phagocytosis of sperms
C
suppress sperm motility
D
prevent ovulation.
(AIPMT-2010) (AIPMT-2000)
Solution
(c) : Copper releasing $IUDs$ $(i.e., CuT, LNG-20)$ are placed in the uterus of the females. They are an efficient birth control methods. Copper ions released by them suppress motility and fertilising capacity of the sperms.
Standard 12
Biology
Similar Questions
Match List$-I$ with List$- II.$
| List$-I$ | List$-II$ |
| $(a)$ Vaults | $(i)$ Entry of sperm through Cervix is blocked |
| $(b)$ $IUDs$ | $(ii)$ Removal of Vas deferens |
| $(c)$ Vasectomy | $(iii)$ Phagocytosis of sperms within the Uterus |
| $(d)$ Tubectomy | $(iv)$ Removal of fallopian tube |
Choose the correct answer from the options given below.
$(a)- (b)- (c)- (d)$
