The blood flow through a nephron begins with the afferent arteriole, which delivers blood to the glomerulus, a high-pressure capillary bed. Here, blood is filtered to create filtrate, which is collected by the glomerular (Bowman’s) capsule. From the capsule, the filtrate moves into the proximal convoluted tubule (PCT), where most solutes like glucose and ions are reabsorbed. The filtrate then travels down the descending loop of Henle, which allows water reabsorption. The ascending loop of Henle moves electrolytes, like sodium, out of the filtrate. The filtrate enters the distal convoluted tubule (DCT), where further reabsorption and secretion occur. Blood exits the glomerulus through the efferent arteriole, which leads to the peritubular capillaries or vasa recta, depending on the nephron type. These capillaries recover most of the water and solutes from the filtrate, returning them to the bloodstream. The final urine then passes into the collecting ducts, which further adjust water reabsorption before exiting the nephron.

Reference:
Open Oregon State. (n.d.). 25.2 Microscopic Anatomy of the Kidney: Anatomy of the Nephron. Retrieved from https://open.oregonstate.education/aandp/chapter/25-2-microscopic-anatomy-of-the-kidney-anatomy-of-the-nephron/