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This section shows the basic geography of the kidney. In the cortex, numerous renal corpuscles are visible (arrow). They tend to be arranged in parallel rows at right angles to the capsule. Most of the tissue mass surrounding the renal corpuscles in the cortex consists of proximal and distal convoluted tubules. Very faint lines appear to radiate towards the medulla (lower right), and are called medullary rays. These are composed of bundles of collecting tubules and ducts originating higher in the cortex. At the corticomedullary junction, an arcuate artery (a) is seen. |
