ANATOMY

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 the area where the renal artery, renal vein and ureter enter the kidney. The nephrons are the millions of small tubes inside each kidney.

Detailed explanation-3: -The renal hilum is the entry and exit site for structures servicing the kidneys: vessels, nerves, lymphatics, and ureters. The medial-facing hila are tucked into the sweeping convex outline of the cortex. Emerging from the hilum is the renal pelvis, which is formed from the major and minor calyxes in the kidney.

Detailed explanation-4: -Blood flows into your kidney through the renal artery. This large blood vessel branches into smaller and smaller blood vessels until the blood reaches the nephrons. In the nephron, your blood is filtered by the tiny blood vessels of the glomeruli and then flows out of your kidney through the renal vein.

Detailed explanation-5: -The right renal artery originates from the anterolateral aspect of the aorta and runs in an inferior course behind the inferior vena cava to reach the right kidney, while the left renal artery originates slightly higher and from a more lateral aspect of the aorta, and runs almost horizontally to the left kidney.