This free standing urinary system model comes with 4 parts and represents the major components of the urinary system. The right kidney is dissected to show the cortex, medulla, pyramids, calyces, pelvis, and origins of the renal artery and vein. The bladder can also be removed and opened for more detailed learning. This model is durable and a great learning tool in all classrooms. All significant features are numbered and identifiable on the included key. Model is mounted on a 9” x 7” board and made exclusively from high quality medical PVC.