Question

Birth control pills check ovulation in female by inhibiting the secretion of:
A. Follicle stimulating hormone (FSH)
B. Luteinising hormone (LH)
C. Both [a] and [b]
D. None of the above

Answer 1

Hint: Contraceptive pills, sometimes known as birth control pills, are drugs that stop unintended pregnancies. They include hormones like progesterone, oestrogen, or both. These hormones regulate how the uterus and ovaries operate.

Complete Step by Step Answer:
Estradiol, the oestrogen present in the pill, and progestin, the progesterone included in the pill, are the two substances that make up these pills or tablets.
They come in 28-day packs or 21-day packs that are made to be taken every day at the same time, contain 21 hormone-containing pills and 7 placebos, and work to prevent pregnancy by stopping ovulation.
The first day of the menstrual cycle is when it should be started, and skipping doses causes withdrawal bleeding.
As is common knowledge, the ovaries release the sex hormones oestrogen and progesterone, which govern menstruation and pregnancy.
As these hormones are ingested, their concentration rises in the body and exhibits negative feedback on the pituitary, which regulates the release of follicle-stimulating hormones and luteinizing hormone secreted by the follicles of the ovary. These hormones stop being released, preventing the maturation and release of the ovule, which prevents ovulation and thus prevents pregnancy.
Hence, the correct option is C.


Note: Simply explained, oral contraceptive pills are oestrogen and progesterone-containing tablets that are taken orally to prevent pregnancy. This is done by reducing the release of follicle-stimulating hormone and luteinizing hormone, which in turn stops ovulation.