Late components form large proteins that disrupt membranes and kill foreign cells. The purpose if inflammation is to destroy invaders and restore tissues to normal. Inflammation occurs in both non-specific and specific defense responses. They circulate in the blood stream. Release of histamine Histamine dilates blood vessels and causes seepage of fluid into tissues.
Vasodilation causes warmth and redness.
Seepage of fluid causes swelling. Phagocytes follow the chemical trail to damaged tissue and engulf invaders and cellular debris. Agents involved in clotting wall off the infection to keep it from spreading. Tissues are repaired after inspection stopped. This system mounts the most efficient attack.