Here is the kidney, it is cut open horizontally so that we can see the inside of it. Inside of the kidney we can see renal artery (looks pink), the renal vein, renal cortex, renal pyramids, renal pelvis, renal medulla, and the ureter exits the kidney and leads to the urinary bladder. Also inside of the kidney are small blood vessels called microscopic tubules. There are also nephrons in the kidney which help to relay signals throughout the body. The kidneys help the body to clean out the waste and filter the body's blood so that it can be clean as it flows in the body.
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