The arcuate arteries are located at the corticomedullary junction, arching over the base of the renal pyramids. They form as the interlobar arteries reach the boundary between the cortex and medulla. The arcuate arteries give rise to the interlobular arteries, which supply the renal cortex.
Segmental arteries (A) branch directly from the renal artery.
Interlobar arteries (B) course between the renal pyramids.
Interlobular arteries (D) extend into the cortex from the arcuate arteries.
Reference Extracts:
Moore KL, Dalley AF, Agur AM. Clinically Oriented Anatomy. 7th ed. Lippincott Williams & Wilkins, 2013.
Rumack CM, Wilson SR, Charboneau JW, Levine D. Diagnostic Ultrasound. 5th ed. Elsevier, 2017.
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