Describe the general functions of FSH, LH, and testosterone in males AND explain how FSH, LH, and testosterone interact in the maintenance and functioning of the male reproductive system.

The reproductive system of an organism is the biological system made up of all the anatomical organs involved in sexual reproduction. Many non-living substances such as fluids, hormones, and pheromones are also important accessories to the reproductive system.

The functions of LH, FSH, and testosterone in males are as follows:

LH:  It stimulates testosterone production from the interstitial cells of the testes, i.e., the Leydig cells.

FSH: It acts on testicular growth and enhances the production of an androgen-binding protein by the Sertoli cells. It stimulates the process of spermatogenesis.

Testosterone: It regulates sex drive, bone mass, fat distribution, muscle mass and strength, and the production of red blood cells and sperm.