Medical research

Study reveals that kidney cells don't filter blood, they pump it

Human kidneys are an intricate network of tubes that process roughly 190 quarts of blood every day. Lining these tubes are epithelial cells that transport blood through the kidneys and circulate it back into the body. How ...

Medical research

Bionic leg makes amputee faster on his feet

Craig Hutto considers himself part bionic man. In 2005, doctors amputated his leg after a shark attacked him during a fishing trip off the Florida Gulf Coast.

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