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    Which of the following ions suppress sperm motility in IUD contraception?
    Question

    Which of the following ions suppress sperm motility in IUD contraception?

    A.

    Calcium

    B.

    Iron

    C.

    Copper

    D.

    Magnesium

    Correct option is C

    IUD increase PHAGOCYTOSIS of sperm within the uterus and the copper ions suppress sperm motility and the fertilizing facility of sperms.

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