Leydig (interstitial) cells secrete which of the following?

Leydig (interstitial) cells, located in the testes, are specifically responsible for the production and secretion of testosterone, which is the primary male sex hormone. Testosterone plays a crucial role in the development of male reproductive tissues, the promotion of secondary sexual characteristics, and the regulation of various physiological processes.

The production of testosterone by Leydig cells is stimulated by luteinizing hormone (LH) released from the pituitary gland, highlighting their key role in the endocrine system related to male reproductive health. Understanding this function emphasizes the importance of Leydig cells in male physiology and their impact on fertility and sexual function.

Other hormones listed, such as estrogen, progesterone, and corticosterone, are produced in different tissues and are not secreted by Leydig cells, further reinforcing the specificity of Leydig cells in testosterone production.