Question

Identify the correct statement on ‘inhibin’.

• A. It is produced by nurse cells in testes and inhibits the secretion of LH.
• B. It is produced by granulosa cells in ovary and inhibits the secretion of LH.
• C. It is produced by granulosa cells in ovary and inhibits the secretion of FSH.
• D. It Inhibits the secretion of LH, FSH and prolactin.

Answer 1

The correct option is C

It is produced by granulosa cells in ovary and inhibits the secretion of FSH.

The correct option is C.

Explanation for the correct option:

1. Inhibin is a polypeptide protein secreted by male Sertoli cells and female Granulosa cells.
2. Inhibin is produced in the ovary by granulosa cells and causes a negative feedback mechanism on FSH.
3. The follicle-stimulating hormone's primary function is to stimulate the formation and function of granulosa cells.
4. Sertoli cells in the male reproductive system also produce inhibin in small amounts.

Explanation for the incorrect options:

Option A:

In males, inhibition is produced by Sertoli cells rather than nurse cells, and it does not inhibit LH secretion.

Option B:

Luteinizing hormone secretion is inhibited by progesterone and estrogen.

Option D:

Inhibin has no effect on LH or prolactin secretion.

Final answer: Inhibin is produced by granulosa cells in the ovary and inhibits the secretion of FSH.