A full-color, affordable model of the human kidney and related components of the urinary system. Kidneys, ureters and bladder are clearly shown. Inset of enlarged, dissected kidney displays internal parts: cortex, pyramid, calyx, papilla and pelvis. A single nephron is enlarged for study and examination. Includes an activity notebook with a full-color transparency, blackline master and activity guide. 18" x 24" model is constructed of high-impact plastic.