interlobar artery

The interlobar arteries are a crucial part of the kidney's vascular system. These arteries are located between the renal pyramids, which are the triangular sections forming the inner substance of the kidney.1

Each interlobar artery branches out over the base of a pyramid. From these, smaller arteries and capillaries further divide to supply blood to each pyramid and the surrounding cortex, creating a rich network of blood vessels. The interlobar arteries themselves branch off from the lobar arteries, which enter the kidney through the hilum, originating from the main renal artery. This intricate network ensures that blood is efficiently delivered to the nephrons, the functional units responsible for processing blood and producing urine.123