Testosterone is produced by sertoli cells.
Graafian follicles
Testosterone is produced by the leydig cells of testis.
The male gonad is testis which has a dual role both as a primary sex organ and also as an endocrine gland. Testis is composed of seminiferous tubules and stromal or interstitial tissue. The Leydig cells or interstitial cells, which are present in the intertubular spaces produce a group of hormones called androgens mainly testosterone.