Question

Select the incorrect action of hormonal contraceptive pills from the following:

• A. Changes in cervical mucus impairing its ability to allow passage and transport of sperms
• B. Inhibition of spermatogenesis
• C. Alteration in uterine endometrium to make it unsuitable for implantation
• D. Inhibition of ovulation

Hint:

Remember: Pills act on ovulation, uterus, and cervical mucus — not on sperm production.

Answer 1

The Correct Option is B

Concept: Hormonal contraceptive pills (mainly estrogen and progesterone combinations) act on the female reproductive system to prevent pregnancy.
Step 1: Actions of contraceptive pills.

• Inhibit ovulation by suppressing FSH and LH
• Thicken cervical mucus, preventing sperm entry
• Alter endometrium, making it unsuitable for implantation

Step 2: Evaluate each option.

• Changes in cervical mucus $\rightarrow$ Correct action
• Inhibition of spermatogenesis $\rightarrow$ Occurs in males, not by female contraceptive pills (incorrect)
• Alteration in uterine endometrium $\rightarrow$ Correct action
• Inhibition of ovulation $\rightarrow$ Primary action (correct)

Step 3: Conclusion.
Thus, inhibition of spermatogenesis is not an action of hormonal contraceptive pills.