Kidney is one of the vital organs for humans. So far, it was thought inappropriate that the kidneys produce urine only. Though there are many functions that play a pair of organs shaped like kidney beans and the amount of approximately this fist. Among others regulate acid base balance and body fluids, and regulate blood pressure and metabolism (formation) of bone. In addition, the kidneys also produce hormones eritroprotein (EPO) which sends signals to the bone marrow to make blood cells red. Read the rest of this entry »