Information: - The renal cortex is the outer portion of the kidney between the renal capsule and the renal medulla. In the adult, it forms a continuous smooth outer zone with a number of projections (cortical columns) that extend down between the pyramids. It contains the renal corpuscles and the renal tubules except for parts of the loop of Henle which descend into the renal medulla. It also contains blood vessels and cortical collecting ducts. - The renal medulla is the innermost part of the kidney. The renal medulla is split up into a number of sections, known as the renal pyramids. Blood enters into the kidney via the renal artery, which then splits up to form the interlobar arteries. The interlobar arteries each in turn branch into arcuate arteries, which in turn branch to form interlobular arteries, and these finally reach the glomeruli. At the glomerulus the blood reaches a highly disfavourable pressure gradient and a large exchange surface area, which forces the serum portion of the blood out of the vessel and into the renal tubules. Flow continues through the renal tubules, including the proximal tubule, the Loop of Henle, through the distal tubule and finally leaves the kidney by means of the collecting duct, leading to the renal pelvis, the dilated portion of the ureter. - The renal lobe is a portion of a kidney consisting of a renal pyramid and the renal cortex above it . It is visible without a microscope , though it is easier to see in humans than in other animals . It is composed of many renal lobules , which are not visible without a microscope . After reading the paragraphs above, we are interested in knowing the entity with which 'renal lobe' exhibits the relationship of 'arterial supply'. Find the answer from the choices below. Choices: - interlobar arteries - renal artery
interlobar arteries