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: -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-3: -It is roughly bean-shaped with an indentation, called the hilum, on the medial side. The hilum leads to a large cavity, called the renal sinus, within the kidney. The ureter and renal vein leave the kidney, and the renal artery enters the kidney at the hilum.

Detailed explanation-4: -Answer and Explanation: The answer is d. urethra. All the other choices pass through the renal hilum.

Detailed explanation-5: -Hylus’s Order The superior, middle, and inferior vessels enter or leave the hylus of kidney: from anterior to posterior is renal vein, renal artery and renal pelvis, respectively.