Urinary Bladder with Prostate Anatomical Model, 2 Parts3 times life size 2 parts shows internal and external structures Enlarged 3 times, shows the male urinary bladder with the prostate gland surrounding the urethra. The model is dissected medially to expose internal structures of both the bladder and prostate, including the ureteric and urethral orifices, ductus deferens, seminal gland and ejaculatory duct. Mounted on a base, includes a key card.