Blood vessels that carry blood to the kidneys, blood vessels leaving the heart. Which is conveyed both useful substances and waste that needs removed. Substances transported by the blood is passed through the kidneys into the units along the capillary. Social kidney function to filter substances in the blood. Trial data showed that red blood cells and substances such as hemoglobin protein can not pass through the kidney unit. For some substances, such as glucose, amino acids and other waste. Pass into the renal unit and will flow into the pipe of the kidney. Minerals and substances that are beneficial to the body. When passing through the pipe wall of the kidney is absorbed back into the kidneys of new capillaries. The other waste is Which are collectively known as urine is passed through the tube into the stomach, kidneys and Saa discussed next. Then excreted from the body in a fluid is urine.
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