Spleen

The spleen is an organ of the human body located in the upper-left part of the abdomen, between the stomach and the diaphragm. The spleen serves as an important part of the immune system, and helps fight off infections. The spleen contains white blood cells that protect against bacteria, viruses, and other disease-causing organisms. It also filters out old, damaged, or otherwise unwanted cells from the bloodstream. The spleen also plays a role in producing red blood cells and platelets, which are important for clotting of blood and preventing excessive bleeding. Thus, the spleen plays an important role in keeping our body healthy and in fighting off diseases.