S blood supply

Some aspects of the blood supply of the kidney have been described in relation to specific functions, i.e., glomerular filtration, control of blood pressure, and countercurrent exchange. It remains, however, to provide an overall description of the blood supply of the kidney.

Each kidney receives a large branch from the abdominal aorta, called the renal artery. The renal artery branches within the renal sinus and sends interlobar branches into the substance of the kidney (Fig. 19.21). The interlobar arteries travel between the pyramids as far as the cortex and proximal convoluted tubule distal convoluted tubule glomerulus proximal convoluted tubule distal convoluted tubule glomerulus

collecting tubule thin descending limb

thin descending limb

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