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What is the renal pelvis?

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Renal pelvis, enlarged upper end of the ureter, the tube through which urine flows from the kidney to the urinary bladder. The pelvis, which is shaped somewhat like a funnel that is curved to one side, is almost completely enclosed in the deep indentation on the concave side of the kidney, the sinus. read more

The renal pelvis or pelvis of the kidney is the basin-like or funnel-like dilated proximal part of the ureter in the kidney. In humans, the renal pelvis is the point of convergence of two or three major calyces. Each renal papilla is surrounded by a branch of the renal pelvis called a calyx. read more

The renal pelvis is an important part of the kidney in humans and many animals that essentially acts as a filter for urine before it passes out of the kidney and into the bladder. It looks sort of like a cup-shaped open cavity, and it can usually expand or retract in response to urine volume. read more