They have tiny vesicles that contain chemicals within the cytoplasm. So we have neutrophils, we have basophils and we have eosinophils. And all these cells are found within the blood and they respond to these chemicals released into the blood and then they move into the skin tissue where our infection is taking place. Now let's begin with neutrophils. Neutrophils are phagocytic cells and what that means is when they move into our skin tissue they begin to engulf these pathogens. So these pathogens once again could be bacterial cells.