Paedagogica Index. 1  You don't just read about Seneca or Caesar; you read the words of Seneca and Caesar themselves. You don't just speak your own modern language unreflectively, but you learn where much of it came from, after actually seeing the contents and the workings of one of its greatest sources.
The spleen will save any useful components from the old blood cells, including iron, so they can be reused in new cells. The spleen can increase in size in order to store blood. The organ can widen or narrow, depending on the bodyâs needs. At its largest, the spleen can hold up to a cup of reserve blood. Spleen problems
The spleen plays multiple supporting roles in the body. It acts as a filter for blood as part of the immune system. Old red blood cells are recycled in the spleen, and platelets and white blood cells are stored there.The spleen also helps fight certain kinds of bacteria that cause pneumonia and meningitis.he spleen is an organ in the upper far left part of the abdomen, to the left of the stomach. The spleen varies in size and shape between people, but itâs commonly fist-shaped, purple, and about 4 inches long. Because the spleen is protected by the rib cage, you canât easily feel it unless itâs abnormally enlarged.