Question

During pregnancy, the production of ova in ovary is prevented by

• A. Estrogen
• B. FSH
• C. Progesterone
• D. Prolactin

Answer 1

The correct option is C Progesterone

During pregnancy, the production of ova in the ovary is prevented by progesterone.

Progesterone is a hormone released by the corpus luteum in the ovary. It plays important roles in the menstrual cycle and in maintaining the early stages of pregnancy. It may also be involved in the growth of certain cancers.

Progesterone is known to have effects on other female organs. In the ovaries, progesterone and estrogens are thought responsible for the release of an egg during ovulation. It is believed that, if the egg is fertilized, these hormones are influential in the prevention of further egg release until the pregnancy has terminated. This dual action ordinarily prevents the release and fertilization of more than one egg at one time, although two or more eggs are occasionally released. In the fallopian tubes, progesterone is thought to stop the muscular contractions in the tube once the egg has been transported. During pregnancy, progesterone also stimulates the development of the glands in the breasts that are responsible for milk production.