Reference Terms
from Wikipedia, the free encyclopedia


The kidneys are bean-shaped excretory organs in vertebrates.

Part of the urinary system, the kidneys filter wastes (especially urea) from the blood and excrete them, along with water, as urine.

In humans, the kidneys are located in the posterior part of the abdomen.

Note:   The above text is excerpted from the Wikipedia article "Kidney", which has been released under the GNU Free Documentation License.
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