Corpus luteum secretes
A. Progesterone
B. LH
C. FSH
D. Estrogen
Correct Answer: A. Progesterone
Explanation
Corpus luteum secretes primarily Progesterone.
In addition, it also secretes small amounts of Estrogen and Inhibin.
Main hormones secreted by Corpus Luteum
Hormone Function Progesterone Maintains endometrium for implantation and sustains early pregnancy Estrogen Supports uterine lining and works with progesterone Inhibin Inhibits FSH secretion from pituitary to prevent development of new follicles
Summary
➡️ Corpus Luteum secretes Progesterone (main), Estrogen, and Inhibin.
Other Options Details
Here is the description of all the given options:
A. Progesterone
- Progesterone is a female sex hormone produced mainly by the corpus luteum in the ovary and by the placenta during pregnancy.
- It prepares and maintains the endometrium (uterine lining) for implantation of a fertilized egg.
- It helps maintain pregnancy and prevents uterine contractions.
- It also helps in the development of mammary glands for lactation.
B. LH (Luteinizing Hormone)
- LH is a hormone produced by the anterior pituitary gland.
- In females, it causes ovulation (release of the mature egg from the ovary).
- It also stimulates the formation of the corpus luteum, which secretes progesterone.
- In males, LH stimulates Leydig cells in the testes to produce testosterone.
C. FSH (Follicle Stimulating Hormone)
- FSH is also produced by the anterior pituitary gland.
- In females, it stimulates the growth and development of ovarian follicles and secretion of estrogen.
- In males, FSH stimulates spermatogenesis in the seminiferous tubules of the testes.
D. Estrogen
- Estrogen is a female sex hormone produced mainly by the ovaries, particularly the developing Graafian follicles.
- It is responsible for the development of female secondary sexual characteristics such as breast development, wider hips, and body fat distribution.
- It helps in the growth of the endometrium and regulation of the menstrual cycle.
- It also helps maintain bone density and influences skin, hair, and mood.
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Writer: Vandita Singh, Lucknow (GS India Nursing Group)