They engulfed them and then they essentially destroyed them. So monocides enter tissue and develop into macrophages which are large scavenger cells that engulf pathogens via phagocytosis. So the two type of phagocytitic cells, phagocytic cells inside our immune system are macrophages as well as neutrophils. But macrophages are much, much larger than the neutrophils. Now let's move on to our lymphocytes. So lymphocytes are those specialized wide blood cells that make up our specific immune system, our acquired or adapted immune system.