The upper end of each ureter flares into a funnel-shaped structure known as the _____.

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The upper end of each ureter flares into a funnel-shaped structure known as the renal pelvis, which collects urine from the kidney and funnels it into the ureter for elimination from the body. The renal pyramid is a triangular structure in the kidney's medulla, and the renal papilla is the tip of each pyramid that drains urine into the calyx. The renal column is the area of cortical tissue that extends between the pyramids.

The Upper End of Each Ureter Flares into a Funnel-Shaped