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Cu ions released from copper-releasing Intra Uterine Devices (IUDs)
A
Prevent ovulation
B
Make uterus unsuitable for implantation
C
Increase phagocytosis of sperms
D
Suppress sperm motility
Detailed Solution
All IUDs increase the phagocytosis of sperms within the uterus.
In addition, the Cu ions released by copper-releasing IUDs (CuT, Cu7, Multiload 375) suppress sperm motility and the fertilising capacity of sperms.
Making the uterus unsuitable for implantation and the cervix hostile to sperms is the action of hormone-releasing IUDs (Progestasert, LNG-20).
Prevention of ovulation is the action of oral contraceptive pills.
Hence the specific effect of the Cu ions is to suppress sperm motility.
In addition, the Cu ions released by copper-releasing IUDs (CuT, Cu7, Multiload 375) suppress sperm motility and the fertilising capacity of sperms.
Making the uterus unsuitable for implantation and the cervix hostile to sperms is the action of hormone-releasing IUDs (Progestasert, LNG-20).
Prevention of ovulation is the action of oral contraceptive pills.
Hence the specific effect of the Cu ions is to suppress sperm motility.