The renal medulla is the innermost part of the kidney, located beneath the outer layer known as the renal cortex. It consists of cone-shaped structures called renal pyramids, which play a crucial role in the kidney's function of filtering blood and producing urine. The medulla contains the loops of Henle and collecting ducts, which help concentrate urine and regulate water balance in the body. In addition to its structural components, the renal medulla is essential for maintaining the body's electrolyte balance and blood pressure. It works closely with the renal cortex and other parts of the urinary system, including the nephrons, to ensure efficient waste removal and fluid regulation.