essential organ
Body part required
An essential organ is one necessary for survival—the heart, brain, lungs, liver, and kidneys are typically counted among them.
Failure of any essential organ leads to death without medical intervention.
The term distinguishes organs you cannot live without from those like the spleen or gallbladder, which can be removed.
- vitalEssential or sustaining existence
- vital signsMeasurable life indicators
- heartCirculatory system's pump
- liverAbdominal detoxifying organ
- kidneyBlood-filtering organ
beating heart · lung · brain · core · fundamental · necessary · critical · life or death · indispensable · lifesaving · life support · transplant · heart transplant · failure · donor · pumping · beating · tissue
essential organvestigial organ
Body part without function
appendix · vestigial structure · wisdom teeth · tonsils · gallbladder
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