NEET PG DENTAL EXAM

Detailed explanation-1: -The mature renal medulla, the inner part of the kidney, consists of the medullary collecting ducts, loops of Henle, vasa recta and the interstitium. The unique spatial arrangement of these components is essential for the regulation of urine concentration and other specialized kidney functions.

Detailed explanation-2: -Medulla. (1) Inner section of the kidney. (2) Contains most of the collecting tubules that carry the urine from the nephrons on through the kidney.

Detailed explanation-3: -Collecting ducts descend through the cortex and medulla and successively fuse near the inner medullary region. Toward the papillary tip, converging papillary ducts form approximately 20 large ducts, which empty into the renal pelvis. The collecting ducts are composed of two cell types: principal and intercalated cells.

Detailed explanation-4: -The cortex contains the renal corpuscle, proximal, and distal convoluted tubules. The medulla and medullary rays contain the loops of Henle and collecting ducts.