Question

The most important component of oral contraceptive pills is
(a)Progesterone estrogen
(b)Growth hormone
(c)Thyroxine
(d)Luteinising hormone

Answer 1

The vital component of the contraceptive pill prevents the development of eggs and the ovary does not release any eggs. It consists of a female hormone that controls the menstrual cycle and another hormone that is involved in reproductive growth in women.

Complete answer:
The hormones estrogen and progesterone are present in most contraceptive pills. Progesterone disrupts the normal menstrual cycle along with estrogen and inhibits ovulation. It prevents FSH and LH from being secreted by the pituitary. This leads to ovulation being prevented.
Oral contraceptive pills contain the hormone progesterone, which plays a central role in menstrual and pregnancy cycles. These pills thicken the cervix mucus, making it hard for the sperm to get into the uterus. Fertilization does not occur.

Additional Information: Oral contraceptive pills contain either progesterone alone, or progesterone and estrogen in combination. In four ways, these pills act:
-Ovulation inhibition.
-Motility and secretory function suppression of oviducts (Fallopian tubes).
-Changes in the ability of the cervical mucus to facilitate sperm passage and transport.
-Alteration of the endometrium of the uterus to make it unsafe for implantation.
So, the correct answer is, ‘Progesterone estrogen’.

Note: These hormones avoid the manufacture of the pituitary hormones FSH and LH in a female's normal sexual cycle. The ovarian follicles do not ripen in the absence of FSH. Ovulation does not occur in the absence of LH.
There are three types of pills currently available: the combination of estrogen-progesterone, progesterone alone, and continuous or extended use pills as well. A combination hormone pill with estrogen and progesterone is the most widely prescribed pill. Progesterone is the hormone that prevents pregnancy, so menstrual bleeding will be regulated by the estrogen portion. Pills containing only progestin are referred to as mini-pills.