Q147 / 180 · NEET 2019 (Odisha) · Zoology

Which of the following is a correct statement?

A
IUDs once inserted need not be replaced
B
IUDs are generally inserted by the user herself
Correct answer
C
IUDs increase phagocytosis of sperms in the uterus
D
IUDs suppress gametogenesis

Solution

Option (c) is correct as Intrauterine Devices (IUDs) increase phagocytosis of sperms within the uterus and the $\mathrm{Cu}$ ions released suppress sperm motility and fertilising capacity of sperms. Other statements can be corrected as IUDs can be removed as these are a reversible contraception method. IUDs are inserted by doctors or expert nurses in the uterus through vagina. IUDs do not affect gametogenesis.

Hence, the correct answer is option: 'C'.

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