The human male reproductive system consists of a scrotum, testes, testicular lobules, seminiferous tubules, urethra, and penis. The scrotum is a pouch of deeply pigmented skin divided into two separate sacs. Each sac contains one testis. Testes are the primary sex organs of the man. Each testicular lobules consists of 2-3 seminiferous tubules, blood vessels, nerves, and connective tissue. The male urethra is a common pathway for both semen and urine. The penis is the male copulatory organ and for conducting urine from the body.