Question

Cu ions released from copper-releasing intra uterine devices (IUDs).

• A. Make uterus unsuitable for implantation
• B. Increase phagocytosis of sperms
• C. Suppress sperm motility
• D. Prevent ovulation

Answer 1

The correct option is C Suppress sperm motility

Cu ions release by copper-releasing intrauterine devices suppresses sperm motility. Intrauterine devices are inserted by doctors in the uterus through the vagina. They are available as the non-medicated IUDs, copper-releasing IUDs, and hormone-releasing IUDs, these IUDs increase phagocytosis of sperms within the uterus and the Cu ions suppress sperm's motility and fertilizing capacity.

So, the correct answer is 'Suppress sperm motility'