Testicles: The leydig cells in the testicles are the source of testosterone.
Answered 3/13/2019
5.5k views
Specialized glands: Brain signals regulateleydig cells in the testes which secrete testosterone. In males, most of the testosterone is produced in the testes and a small amount is derived from the adrenal gland. In females, small amounts of testosterone are produced in the ovaries and derived from the adrenal gland.
Answered 7/31/2018
5.5k views
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