Normal hemostasis and coagulation 3. course (1) thromboplastin intrinsic:ⅫXa—X-XIaX IXa+Ⅷ山+ca+PF3 extrinsic: lI-Vll+Ca X-Xa+v+CatPF3 (2) thrombin: prothrombinthromboplatin+CathrombinNormal hemostasis and coagulation 3. course： （1）thromboplatin intrinsic: Ⅻ-Ⅻa——Ⅺ-Ⅺa-Ⅸ- Ⅸa+Ⅷ+Ca+PF3 extrinsic: III-VII+Ca Ⅹ-Ⅹa+Ⅴ+Ca+PF3 （2）thrombin：prothrombinthromboplatin+Cathrombin