1. Phagocytosis: Monocytes and neutrophils destroy microbes in the process of phagocytosis.
2. Destruction of microbes: Neutrophils contain toxic granules that destroy microbes.
3. Immunity: Lymphocytes make the body immune to disease by producing antibodies.
4. Removal of dead cells: They remove dead cells from the body.
5. Prevention of blood clotting: Basophils prevent blood clotting by producing heparin.
6. Histamine: Granular white blood cells produce histamine and increase the body’s immune system.