Pills:
I. Inhibit ovulation and implantation
II. Alter the quality of cervical mucus to prevent or retard the

Question

Pills:
I. Inhibit ovulation and implantation
II. Alter the quality of cervical mucus to prevent or retard the entry of sperms
III. Prevent the ejaculated semen from entering the female vagina
IV. Inhibit spermatogenesis

Which of the above statements are correct?

Accepted Answer

According to the NCERT text, oral contraceptive pills act by inhibiting ovulation and implantation (Statement I) as well as altering the quality of cervical mucus to prevent or retard the entry of sperms (Statement II). Statement III describes the function of barrier methods (like condoms), not pills. Statement IV is incorrect as pills discussed in the context of the chapter are for females and do not inhibit spermatogenesis (a male process).

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