<prompt> The function common to neutrophils, monocyte macrophages is -Immune responsePhagocytosisLiberation of histamineDestruction of old erythrocytes  <response>: PhagocytesMicro-organisms entering the tissue fluid or bloodstream are very rapidly engulfed by the cells called phagocytes.Phagocytic cells are of two types :Mononuclear macrophages: Monocytes blood, histiocytes tissues, alveolar macrophages lung, kupffer cells liver, microglia brain, osteoclasts bone, and mesangial cells kidney.Polymorphonuclear microphages: Neutrophils.Basophils also belong to polymorphonuclear microphages but they are not phagocytes.Eosinophils have only a limited degree of phagocytic activity. 