The renal cortex is vital for several kidney functions: - Filtration: Blood filtration occurs in the renal corpuscles, where plasma is filtered through the glomerular capillaries. - Reabsorption: Essential substances like glucose, amino acids, and ions are reabsorbed in the proximal convoluted tubules. - Secretion: Waste products and excess ions are secreted into the distal convoluted tubules. - Excretion: Final urine concentration occurs in the cortical collecting ducts before it is transported to the renal pelvis.
