Question

Medulla of both the kidneys opens into a funnel-shaped cavity called:

• A. uriniferous tubules
• B. renal pelvis
• C. ureter
• D. none of these

Answer 1

The correct option is B

renal pelvis

The correct option is B.

Explanation of the correct option:

1. The collecting ducts of the nephrons terminate into the medullary pyramids.
2. The medullary pyramids finally drain into calyces.
3. These calyces finally coalesce into a funnel shaped cavity which is known as renal pelvis.

Explanation of the incorrect option:

Option A: Uriniferous tubules are actually nephrons, which is the structural unit of kidney.

Option C: Ureters are the tubular structure that carry the urine from the kidney towards the urinary bladder.

Final answer: Medulla of both the kidneys opens into a funnel-shaped cavity called renal pelvis.