Musculature of the prostate gland.
D004543:Ejaculatory Ducts / Q000033:anatomy & histology; D006801:Humans; D008297:Male; D009130:Muscle, Smooth / Q000033:anatomy & histology*; D011467:Prostate / Q000033:anatomy & histology*; D012669:Seminal Vesicles / Q000033:anatomy & histology; D014513:Ureter / Q000033:anatomy & histology; D001743:Urinary Bladder / Q000033:anatomy & histology