Seminiferous tubules are tightly coiled structures located within the testes. They are the sites of spermatogenesis, where sperm cells are produced.
The primary role of the seminiferous tubules is to produce sperm through the process of spermatogenesis. This process involves the division and maturation of germ cells into sperm cells. The tubules are lined with spermatogenic cells and Sertoli cells that nourish and support the developing sperm.