why are testes outside the body
Functions of the Testicle. The testicles (also called testes or gonads) are the male sex glands. They are located behind the penis in a pouch of skin called the scrotum. The testicles produce sperm and testosterone.The testicles are located outside the body because sperm develop best at a temperature several degrees cooler than normal internal body temperature. The germ cells inside the seminiferous tubules (sertoli cells) create sperm.esticular cancer is cancer of the testicles. But while you may know where they are and you may know a little bit about what they do, chances are that you don't know what is going on inside of them.