Testosterone is secreted by.. leydig cells

Testosterone is secreted by:

• a- sertoli cells
• b- leydig cells***
• c- germ cells
• d- adrenal medulla.

The answer is b- leydig cells.

Testosterone is a sex hormone that is primarily produced by the testes in men. Leydig cells, also known as interstitial cells, are located between the seminiferous tubules in the testes and are responsible for the production of testosterone.

Sertoli cells are located within the seminiferous tubules and are responsible for supporting sperm development. Germ cells are the cells that give rise to sperm. The adrenal medulla is a part of the adrenal gland that produces adrenaline and other hormones, but it does not produce testosterone.

Therefore, the most likely answer is that testosterone is secreted by Leydig cells.