Tag Archives: fertility

The primary male sex hormone is testosterone, secreted mainly by the testis and, to some extent, by the zona reticularis of the adrenal cortex. In females, it is also secreted by the ovaries (though in little amount ) and zona reticularis. In males, it is responsible for the development of male reproductive tissues-testes, prostate, and secondary sexual features-increase in bone mass, muscle mass, and increased hairs.