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'.
Cu ions released from copper-releasing Intra Uterine Devices (IUDs)
NEET UG 2010 — Zoology Reproductive Health
2010mcqeasy
Cu ions released from copper-releasing Intra Uterine Devices (IUDs)
Official previous-year question
Held on 30 Apr 2010 · Verified 9 Jul 2026.
Options
- A
make uterus unsuitable for implantation
- B
increase phagocytosis of sperms
- C
suppress sperm motility
- D
prevent ovulation
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