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Sliced down the middle, this human kidney cross section lays open the inner structure of the organ in clear relief. A smooth cortex band rims the bean shape, fan-shaped medullary pyramids radiate inward with fine striped texture, and the calyces funnel into the renal pelvis. Vessels exit from the hilum and the ureter curves down and away. The carved detail reads well from across a room, making it a strong pick for an anatomy classroom, a medical student's desk or a nephrology office shelf.

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