Blood flow through the kidneys
1. Blood brought to kidney in renal artery
2. Renal artery branches off aorta
3. Kidney regulates/controls water and salt content
5. Filtered excess water, salts and urea form urine
6. Urine transported to bladder through ureters
7. Purified blood returns to circulation through renal vein
8. Renal vein to heart through vena cava