Normal hemostasis and coagulation Anticoagulant system 1. anticoagulin (1) each coagulate factor and their complex has its own inhibitor (2)important AT-II: 70%anticoagulant activity serine proteinase inhibitor a.Ⅻa.XIa.ⅨXa.DKNormal hemostasis and coagulation • Anticoagulant system: 1. anticoagulin: (1)each coagulate factor and their complex has its own inhibitor (2)important: AT-Ⅲ:70% anticoagulant activity serine proteinase inhibitor Ⅱa. Ⅻa. Ⅺa. Ⅸa. DK