Now, we can subdivide a granule size into two types. We have monocides and we have lymphocytes. So let's begin by focusing on monocides. Now, monocides ultimately differentiate into macrophages. And macrophages are the largest white blood cells of our body. They are very, very large phagocytic cells and these scavenger cells essentially move around our tissue and they seek out different types of harmful agents pathogens, bacterial cells and so forth.