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Renal Vasculature: Major Arteries:

figure The renal arteries arise from the abdominal aorta. Within the renal sinus they divide approximately eight times to become the segmental or lobar arteries. The segmental arteries give rise to the interlobar arteries which ascend between the pyramids toward the cortex. At the junction of the cortex and the medulla, they curve over the renal pyramids of the medulla to form the arcuate arteries from which arise the interlobular arteries. The interlobular arteries give rise to the afferent arteriolar supply to the glomeruli.

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