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Spleen

Location of spleen near stomach, with detail of spleen

The spleen is an organ in the upper left side of the abdomen. It filters the blood by removing old or damaged blood cells and platelets. It also helps the immune system by destroying bacteria and other foreign substances. The spleen holds extra blood that can be released into the circulatory system if needed.

Current as of

Author: Healthwise Staff
Medical Review
E. Gregory Thompson MD - Internal Medicine
Adam Husney MD - Family Medicine
Elizabeth T. Russo MD - Internal Medicine
William H. Blahd Jr. MD, FACEP - Emergency Medicine

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