THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -Each renal artery enters a kidney at a site called the renal hilum. This area is the entry and exit point for vessels and nerves that feed into the kidneys. From there, the artery branches into smaller blood vessels throughout the kidney.

Detailed explanation-2: -The renal hilum is also called renal pedicels. It is the central recessed area which is concave at centre and convex towards the periphery. This is the area where the renal artery enters the kidney and the renal vein and the ureters exit the kidney.

Detailed explanation-3: -The renal arteries divide before entering the renal hilum into anterior and posterior divisions, which receive approximately 75% and 25% of the blood, respectively.