Cu ions released from copper – releasing Intra Uterine Devices (IUDs) :
Options
(a) make uterus unsuitable for implantation
(b) increase phagocytosis of sperms
(c) suppress sperm motility
(d) prevent ovulation
Correct Answer:
suppress sperm motility
Explanation:
Cu ions release by copper releasing intra uterine devices suppresses sperm motility.
Intra-uterine devices are inserted by doctors in the uterus through vagina. They are available as the non-meedicated IUDs, copper releasing IUDs and hormonereleasing IUDs.