Which structure in the kidney collects urine after it has been processed through the renal tubules?

Which structure in the kidney collects urine after it has been processed through the renal tubules?

• A. Proximal tubule
• B. Loop of Henle
• C. Distal tubule
• D. Collecting duct

Answer: (D)

Collecting ducts are the final collection point for urine after it has been processed along the nephron. The proximal tubule, loop of Henle, and distal tubule carry out most reabsorption and secretion, refining the filtrate into urine. The collecting ducts receive this urine from multiple nephrons, allow final water reabsorption under hormonal control, and then channel the urine into the papillae, minor calyces, and on to the renal pelvis. This is why they’re the structure that collects urine after processing through the renal tubules.

Collecting ducts are the final collection point for urine after it has been processed along the nephron. The proximal tubule, loop of Henle, and distal tubule carry out most reabsorption and secretion, refining the filtrate into urine. The collecting ducts receive this urine from multiple nephrons, allow final water reabsorption under hormonal control, and then channel the urine into the papillae, minor calyces, and on to the renal pelvis. This is why they’re the structure that collects urine after processing through the renal tubules.