If you get a splinter (tissue injury), your body immediately jumps into action! First ____1_______will occur in which, the infected cells will release chemicals attracting white blood cells. Then ____2_____will allow the WBC's to exit the blood and enter the tissue. Finally, once they have reached the bacteria, the WBC will engulf it and break it down, or in other words perform _____3______. What goes in the second blank?