Answers

Apurv neema
Jul 27, 2020

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.