Resident cells: matain/repair extracellular matrix

fibroblasts- large, produce ground substances of extracellular matrix

adipocytes- single lipid droplet, store lipids

fixed macrophages- from monocytes in blood, phagocytize foreign material

mesenchymal cells- spindle shape stem cell, divide & response to injury

Wandering cells: repair extracellular matrix/immune

mast cells- filled cytoplasm, release histamine

plasma cells-from activated B-lymphocytes, form antibodies that bind to foreign substance, bacteria

free macrophages- mobile, phagocytize foreign material

other leukocytes-white blood cell, attack foreign materials (lymphocytes)

Learn: ch 4 tissue