NEETZoologyReproductive Health
Read the following statements regarding Intra Uterine Devices (IUDs): (A) Lippes loop is a non-medicated IUD that increases phagocytosis of sperms within the uterus. (B) CuT and Cu7 release copper ions which suppress sperm motility and the fertilising capacity of sperms. (C) Progestasert and LNG-20 are copper-releasing IUDs that also make the uterus unsuitable for implantation. (D) Hormone-releasing IUDs make the cer
Options
- AThree
- BTwo
- CFour
- DOne
Correct answer
A. Three
Step-by-step solution
Statement (A) is correct: Lippes loop is a non-medicated IUD, and IUDs increase phagocytosis of sperms within the uterus. Statement (B) is correct: CuT and Cu7 are copper-releasing IUDs; the released copper ions suppress sperm motility and their fertilising capacity. Statement (C) is incorrect: Progestasert and LNG-20 are hormone-releasing IUDs, not copper-releasing IUDs. Statement (D) is correct: Hormone-releasing IUDs make the uterus unsuitable for implantation and the cervix hostile to the sperms. Therefore, exa