Length1.2 tenths m
40Sesame seeds
1.3 tenthsTennis nets
4.8Postage stamp widths
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A bean-shaped filter that cleans your entire blood supply 40 times daily/The Human Body
Each kidney contains about one million tiny filtering units called nephrons. Together, the kidneys filter roughly 180 litres of blood per day, producing about 1.5 litres of urine. They also regulate blood pressure, electrolyte balance, and red blood cell production.
Per kidney