unite to form a complex network of channels called the Rete Testis. The Rete Testis give rise to several ducts that join a tube called the Epididymis.

Functions of Testes

The testes perform two functions: they produce sperm cells and secrete male sex hormones. The process by which sperm cells are produced is called spermatogenesis. This occurs in the seminiferous tubules of the testes. Once the sperm cells are formed, they collect in the lumen of each seminiferous

tubule and pass through the rete testis to the epididymis, where they remain for a time to mature. The production of sperm cells occurs continually throughout the reproductive life of a male.

The male hormone Testosterone is produced in the Testes. During puberty, testosterone stimulates the enlargement of the testes and various other accessory reproductive organs. It also causes the development of the male secondary sexual characteristics.