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Why is the cortex region in the kidney dark in colour |
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Answer» neys are the main organs of the urinary SYSTEM. They function chiefly to filter blood in order to remove wastes and excess water. The waste and water are excreted as urine. The kidneys also reabsorb and RETURN to the blood needed substances, including amino acids, sugar, sodium, potassium, and other nutrients. The kidneys filter about 200 quarts of blo,OD per day and produce about 2 quarts of waste and EXTRA fluid. This urine flows through TUBES called ureters to the bladder. The bladder stores the urine until it is excreted from the body. |
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