As a right-hand thumb rule, a label is nothing but a word or phrase assigned to a specific part of a diagram to help the reader identify it. In the following Nephron labeled diagram, we have shown Renal Vein (carries oxygen-depleted blood), Renal Artery (carries oxygenated blood), proximal convoluted tubule (PCT), Afferent arteriole, Glomerulus, Efferent Arteriole, Bowman's capsule, Distal Convoluted Tubule (DCT), Collecting Tubule, Descending Limb of Loop of Henle, Ascending Limb of Loop of Henle, and Loop of Henle.