And that includes the ly cell that was lies by the natural killer cell or any infected cell or any pathogen found inside our tissue. So macrophages are large phagocytic cells that engulf pathogens infected cells cancer cells and any debris that is found within a tissue that might be harmful to the cells of that tissue. So these move from the blood and into our tissue. So these seven cells we just described are the major seven cells that are nonspecific and which are part of the innate immune system. Two of these cells are usually found within our skin tissue. We have the mast cell and the dendritic cell.