Normal hemostasis and coagulation fibrinolysis: 1. plasminogen plasminogen activator plasmin (Pad (a2-AP) 2. fibrinolysis fibrinogen-fragmentx-fragmentYfragmentE (FDP) polypeptideABC fragment fragmentNormal hemostasis and coagulation • fibrinolysis： 1. plasminogenplasminogen activator plasmin （PAI）（a2-AP） 2. fibrinolysis： fibrinogen→fragmentX →fragmentY →fragmentE ↘ ↘ ↘ （FDP）polypeptideABC fragmentD fragmentD