What is the work of progesterone which is present in oral contraceptive pills :

What is the work of progesterone which is present in oral contraceptive pills :
A To inhibit ovulation
B To check oogenesis
C To check entry of sperms into cervix and to make them inactive
D To check sexual behaviour

Detailed Solution

Oral contraceptive pills contain progestogens alone or with estrogen.
They act on the hypothalamus and pituitary (negative feedback) and suppress the secretion of FSH and LH. Without the LH surge, ovulation does not occur.
They also change the cervical mucus to hinder sperm entry, but their main action is inhibition of ovulation.
So progesterone in pills works to inhibit ovulation.

Contraceptive methods – oral pills in past papers

2 questions from this chapter have appeared across 2 exam years.

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Practise Contraceptive methods – oral pills All 2 questions This chapter in 2000 AIPMT