What kind of tissue makes up the testis?

The testis is primarily composed of two types of tissue: seminiferous tubules and interstitial tissue. The seminiferous tubules contain germ cells that develop into sperm and Sertoli cells that support and nourish these germ cells. The interstitial tissue, or Leydig cells, produces testosterone and other hormones. This combination of tissues is essential for both spermatogenesis and hormonal regulation in the male reproductive system.