What describes the three main regions of the kidney in their correct sequence from outermost to enter most?

The three main regions of the kidney, from outermost to innermost, are the renal cortex, renal medulla, and renal pelvis. The renal cortex is the outer layer that contains the glomeruli and convoluted tubules. The renal medulla lies beneath the cortex and consists of renal pyramids that house the loops of Henle and collecting ducts. Finally, the renal pelvis is the innermost region, serving as a funnel for urine to flow from the kidneys to the ureter.