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Organ system)
In biology, an organ (Latin: organum, "instrument, tool") is a group of tissues that perform a specific function or group of functions. Common animal organs include the heart, lungs, brain, eye, stomach, spleen, pancreas, kidneys, liver, intestines, skin, uterus, bladder, bone, etc. A group of related organs is an organ system.
Organelles are analogous sub-cellular structures.
The content of this page is retrieved from http://en.wikipedia.org/wiki/Organ_system under GFDL
