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        | two structures located on each side of the lumbar region that filter blood and secrete impurities, forming urine |  | 
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        | outer part of the kidney (cortex = bark) |  | 
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        | indented opening in the kidney where vessels enter and leave |  | 
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        | ducts that carry urine from the nephrons to the renal plevis (kalyx = cup of a flower) |  | 
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        | microscopic functional units of the kidney, comprised of kidney cells and capillaries, each of which is capable of forming urine |  | 
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        | small, ball-shaped cluster of capillaries located at the top of each nephron |  | 
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        | top part of the nephron that encloses the glomerulus |  | 
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        | stem portion of the nephron |  | 
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        | tube that carries urine from the kidney to the bladder |  | 
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        | basin-like portion of the ureter within the kidney |  | 
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        | point of connnection between the renal pelvis and the ureter |  | 
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        | single canal that carries urine to the outside of the body |  | 
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        | opening in the urethra to the outside of the body |  | 
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        | fluid produced by the kidneys containing water and waste products |  | 
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        | waste product formed in the liver, filtered out of the blood by the kidneys, and excreted in urine |  | 
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        | waste product of muscle metabolism, filtered out of the blood by the kidneys, and excreted in urine |  | 
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