1. Factor-I or Fibrinogen: Fibrinogen is a globulin like protein. It is converted to fibrin during blood clotting.
2. Factor-II or Prothrombin: Prothrombin is a plasma protein. It is converted to thrombin during blood clotting.
3. Factor-III or Thromboplastin: Thromboplastin is released from the broken microspheres. It converts prothrombin to thrombin in the presence of calcium ions.
4. Factor-IV or Calcium: Calcium ion helps in the production of thromboplastin. It converts prothrombin to thrombin.
5. Factor-V or Labile: Labile is a protein-like substance present in plasma. It converts prothrombin to thrombin.
6. Factor-VI or Axillarin: It is known as labile factor.
7. Factor-VII or Proconvertin: Proconvertin is currently not available. It is projected.
8. Factor VIII or Antihemophilic: Antihemophilic is a protein-like substance present in plasma. It helps in the production of thromboplastin.
9. Factor-IX or CRISTMAS: CRISTMAS is a protein-like substance present in plasma. It helps in the production of thromboplastin.
10. Factor-X or Stewart: Deficiency of Stewart leads to impaired blood clotting.
11. Factor-XI or Plasma Thromboplastin: It is a type of protein. It participates in the formation of thromboplastin.
12. Factor-XII or Hegman: Hegman activates kallikrein. It produces a substance called plasmakinin. Plasmakinin increases the permeability and dilatability of blood vessels.
13. Factor-XIII or Stabilizing: With the help of stabilizing calcium ions, it transforms soft tissue particles into insoluble hard fibers.