File:Illu prostate lobes.jpg|Lobes of prostate File:Illu prostate zones.jpg|Zones of prostate File:Illu penis.jpg|Structure of the
penis File:Gray1156.png|Vertical section of
bladder, penis, and urethra. File:Prostate - Gray1153.png|Vesiculæ seminales and ampullæ of ductus deferentes, seen from the front. ==References==