NEET PG Medical – 2012 – Question – 33
Renal papilla opens into –
a) Cortex
b) Pyramid
c) Minor calyx
d) Major calyx
Show Answer
Correct Answer – C
Ans. is ‘C’ i.e., Minor calyx
Each kidney has two distinct zones :
1. The outer cortex
2. The inner medulla
-The medulla comprises about 10 renal pyramids. Their apices form renal papillae which indent the minor calyces.
-The cortex is divided into two parts
- Cortical arches or cortical lobules, which form caps over the bases of the pyramids.
- Renal columns, which dip in between the pyramid. Each pyramid along with overlying cortical arch forms a lobe of the
kidney.
The renal sinus is a space that extends into the kidney from the hilus.
It contains :
- Branches of the renal artery.
- Tributaries of the renal vein.
- Renal pelvis: Pelvis divides into 2 to 3 major calyces, and these, in turn, divide into 7-13 minor calyces. Each minor calyx ends in an expansion which is indented by one to three renal papillae
