A white blood cell engulfs a microbe, then fuses with a lysosome to destroy the microbeThere are different types of phagocytic cellsNeutrophils engulf and destroy pathogensMacrophages are found throughout the bodyDendritic cells stimulate development of adaptive immunityEosinophils discharge destructive enzymesCellular innate defenses in vertebrates also involve natural killer cellsThese circulate through the body and detect abnormal cellsMany cellular innate defenses involve the lymphatic system