Question

Duct of Bellini is formed by joining ___________ collecting ducts.

• A. 4--5
• B. 7--8
• C. 12--14
• D. 9--11

Hint:

Remember: {7–8 collecting ducts} join to form the {duct of Bellini}.

Answer 1

The Correct Option is B

Step 1: Understanding the structure.
The duct of Bellini, also known as the papillary duct, is present in the renal medulla of the kidney. It plays an important role in urine transport.
Step 2: Formation of duct of Bellini.
Several collecting ducts merge together in the renal papilla to form a single large duct called the duct of Bellini.
Step 3: Correct anatomical detail.
Approximately 7–8 collecting ducts unite to form one duct of Bellini.
Step 4: Analysis of options.
(A) 4--5: Incorrect. Too few collecting ducts.
(B) 7--8: Correct. This is the standard anatomical number.
(C) 12--14: Incorrect. Excessively high number.
(D) 9--11: Incorrect. Not supported by standard anatomy.