The spleen plays important roles in regard to red blood cells (erythrocytes) and the immune system. It removes old red blood cells and holds a reserve of blood, which can be valuable in case of hemorrhagic shock, and also recycles iron. As a part of the mononuclear phagocyte system, it metabolizes hemoglobin removed from senescent red blood cells. The globin portion of hemoglobin is degraded to its constitutive amino acids, and the heme portion is metabolized to bilirubin, which is removed in the liver.
the spleen plays important roles in regard to red blood cells (erythrocytes) and the immune system it removes old red blood cells and holds a reserve of blood which can be valuable in case of hemorrhagic shock and also recycles iron as a part of the mononuclear phagocyte system it metabolizes hemoglobin removed from senescent red blood cells the globin portion of hemoglobin is degraded to its constitutive amino acids and the heme portion is metabolized to bilirubin which is removed in the liver