Kidney: nephron
Basic anatomy
The kidney can be divided into an outer cortex and an inner medulla. The medulla is composed of renal pyramids. Each kidney typically has 8-18 pyramids.
Each pyramid indents a minor calyx. Two to three minor calyces converge to form a major calyx. The major calyces merge to form the renal pelvis.
The renal pelvis is continuous with the upper ureter.
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Overview of the basic anatomy of the kidney
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Illustration of the nephron. The functional unit of the kidney