Q: Which artery supplies blood to the kidney?  

Answer: C

The renal artery is the main artery that supplies blood to the kidneys. It branches off the abdominal aorta and runs through the renal hilum, which is the entry and exit site for the renal veins and ureters. The renal artery divides into smaller and smaller branches, eventually forming the afferent arterioles that supply blood to the glomeruli in the kidney's nephrons. The blood pressure in the renal artery is typically higher than in other arteries, allowing for efficient filtration and urine production.

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