Keywords: Illu repdt male.jpg Diagram of a cross-section of the human male reproductive system US Government Medical Diagram from http //training seer cancer gov/anatomy/reproductive/male/ US Federal Government/National Cancer Institute PD-USGOV 100px Illu repdt male erect jpg 100px Illu repdt male gl jpg Galician version PD-USGov Male genitalia lateral cross-section Flaccid human penis Pubis |