Some phagocytes also have the ability to present antigen to lymphocytes.
Important phagocytes are monocytes and macrophages. Macrophages are seeded throughout body tissues in a variety of guises. Specialized macrophages include alveolar macrophages in the lungs, mesangial phagocytes in the kidneys, microglial cells in the brain, and Kupffer cells in the liver. Macrophages are versatile cells that play many roles. As scavengers, they rid the body of worn-out cells and other debris.