The efferent arteriole of a nephron divides to form a network of capillaries known as the peritubular capillaries. These capillaries surround the renal tubules and play a crucial role in reabsorption and secretion processes, facilitating the exchange of substances between the blood and the tubular fluid. In some nephrons, particularly those in the juxtamedullary region, the efferent arteriole also gives rise to the vasa recta, which are important for maintaining the osmotic gradient in the kidney.
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