Copper and hormone releasing lUDs act as contraceptives because (i) lUDs (Cu-T, Cu-7) release Cu ions, which suppress sperm motility and the fertilising capacity of sperms. (ii) Hormone releasing lUDs (progestasert, LNG-20)
inhibits ovulation.
make the cervix unreceptive to sperms.
make the uterus unsuitable for implantation
(iii) Increase phagocytosis of sperms within the uterus.
Name any two copper-releasing Intra Uterine Devices (IUDs). List two reasons that make them effective contraceptives.
Answers
Mr. Santosh
Copper and hormone releasing lUDs act as contraceptives because
(i) lUDs (Cu-T, Cu-7) release Cu ions, which suppress sperm motility and the fertilising capacity of sperms.
(ii) Hormone releasing lUDs (progestasert, LNG-20)
- inhibits ovulation.
- make the cervix unreceptive to sperms.
- make the uterus unsuitable for implantation
(iii) Increase phagocytosis of sperms within the uterus.