Kidneys filter blood through the tiny filters, called nephrons. Nephrons are basic functional and structural units of kidneys. Each kidney has about one million nephrons. Nephrons have a tiny blood vessel called glomerulus interlinked with collecting tubule for urine. In the glomerulus, chemical exchange take s place where urea, mineral salts, and toxins are filtered out from blood. This waste fluid is released from the body in the form of urine.
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Kidneys
Kidneys are bean-shaped organs located near the middle of back just below the rib cage. Kidneys are the main organs of the urinary system that filters blood.
Other organs
Other urinary organs are ureter, urinary bladder, and urethra, Urethra carries urine from kidneys to bladder. Urethra passes urine out of the body.
Urinary System
The urinary system is also responsible for maintaining normal blood pressure and controlling production of red blood cells.
Blood
Kidneys filter about 200 quarts of blood every day and produce 2 quarts of waste products and extra water that flows into the bladder.
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