Question

Ducts of Bellini are present in which organ?

• A. Pancreas
• B. Liver
• C. Kidney
• D. Salivary gland

Hint:

These are the terminal papillary collecting ducts that open onto the renal papilla.

Answer 1

The Correct Option is C

Step 1: The papillary collecting ducts of the kidney were historically named the ducts of Bellini. They are renal structures, not glandular or hepatic.
Step 2: These ducts form the most distal part of the collecting duct system. Several medullary collecting ducts converge to form a papillary duct.
Step 3: The papillary ducts open at the area cribrosa of the renal papilla and drain the final filtrate into a minor calyx, from where urine flows to the major calyx and renal pelvis.
Step 4: Since this structure is unique to the kidney, the correct answer is kidney.