What is the Origin of Testicular Testosterone?

This term is a precise anatomical descriptor, linking the hormone testosterone to its main endogenous source organ, the testis.

What is the Mechanism of Testicular Testosterone?

The production is regulated by the Luteinizing Hormone (LH) signal from the pituitary gland, initiating steroidogenesis within the testicular tissue. This circulating testosterone then acts on target tissues via the androgen receptor, influencing muscle mass, bone density, and libido. Maintaining robust Leydig cell function is paramount for androgenic health.

Testicular Testosterone ∞ Area

Testicular Testosterone

Meaning

Testicular Testosterone refers specifically to the primary androgenic hormone synthesized and secreted by the Leydig cells within the testes, which serves as the principal driver of male secondary sexual characteristics and anabolic drive.