The 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.
Review Date 5/6/2019
Updated by: Brent Wisse, MD, Associate Professor of Medicine, Division of Metabolism, Endocrinology & Nutrition, University of Washington School of Medicine, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.