OverviewThe penis is the male organ of reproduction and also the organ of urinary excretion. The testes are a paired set of glands that produce sperm. The scrotum is the sac that houses the testes.
Update Date 12/27/2013
Updated by: Louis S. Liou, MD, PhD, Chief of Urology, Cambridge Health Alliance, Visiting Assistant Professor of Surgery, Harvard Medical School. Also reviewed by David Zieve, MD, MHA, Bethanne Black, and the A.D.A.M. Editorial team.