ANATOMY

Detailed explanation-1: -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-2: -Filtered blood leaves the kidney through the renal vein and flows back to the heart. Pee leaves the kidneys and travels through the ureters to the bladder.

Detailed explanation-3: -Renal veins They branch off the inferior vena cava and drain oxygen-depleted blood from the kidneys.

Detailed explanation-4: -The kidneys remove waste products called urea from the blood through tiny filtering units called nephrons. There are about one million nephrons in each kidney. Each nephron consists of a ball formed of small blood capillaries, called a glomerulus, and a small tube called a renal tubule.

Detailed explanation-5: -The main renal veins empty into the inferior vena cava; the left renal vein is three times longer than the right (7.5 cm versus 2.5 cm). The left renal vein traverses behind the splenic vein and body of the pancreas before it crosses in front of the aorta near its termination in the inferior vena cava.