THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -The testes synthesize two essential products: testosterone, needed for the development and maintenance of many physiological functions including normal testis function; and sperm, needed for male fertility.

Detailed explanation-2: -Testes. Male sex hormones, as a group, are called androgens. The principal androgen is testosterone, which is secreted by the testes.

Detailed explanation-3: -TESTES CONSIST OF seminiferous tubules and interstitial cells, specifically Leydig cells. The seminiferous tubules include germ cells and somatic cells such as Sertoli cells.