Where are the glomeruli located within the kidney?

The glomeruli are located in the renal cortex of the kidney. This area contains the nephron structures where filtration occurs. The glomerulus, a network of tiny blood vessels, plays a crucial role in the initial phase of blood filtration, sieving out waste products while retaining larger molecules like proteins and blood cells. The renal cortex is the outer portion of the kidney, and it's where the majority of the kidney's functional units, the nephrons, reside.

In contrast, the renal pelvis serves as a funnel for urine flowing to the ureter and does not contain glomeruli. The renal medulla, found inner to the cortex, is primarily involved in the concentration of urine and contains the loops of Henle and collecting ducts. The ureter is a tube that carries urine from the kidney to the bladder and does not contain any structures related to filtration. Therefore, the correct answer identifies the specific part of the kidney where glomeruli are located, emphasizing their critical function in renal physiology.