Question

$C{u}^{+2}$ ions released from copper releasing intrauterine devices (IUDs):

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

Answer 1

The correct option is D Suppress sperm motility


Intra uterine devices (IUDs) are used for contraception. There devices are inserted by the doctors into the uterus through vagina. Copper releasing IUDs release copper ions which suppress the sperm motility and the fertilizing capacity of the sperm. 𝑒.𝑔., Cu-T, Cu-7, multiload-375.