440 Coagulation Factors

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15 Terms

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I

Fibrinogen

Fibrinogen Group

Serves as substrate and fibrin precursor

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II

Prothrombin

Vit K group

Becomes Protease and is Thrombin Precursor

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III

TF

Cofactor for Extrinsic Xase

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IV

Ca++

Cofactor for most reactions

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V

Proaccelerin

Fibrinogen group

Cofactor for prothrombinase complex

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VII

Proconvertin

Vit K group

Protease and Extrinsic Xase constituent

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VIII

Antihemophilic

Fibrinogen group

Complexes w/ VWF

Also Intrinsic Xase cofactor

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VWF

Synth by endothelial cells and megakaryocytes

Serves to stabilize circulating VIII and facilitate plt adhesion to the vessel wall

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IX

Christmas Factor (Plasma thromboplastin component)

Vit K group

Protease in the Intrinsic Xase

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X

Stuart Factor

Vit K group

Protease of the prothrombinase complex

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XI

Plasma Thromboplastin Antecedent

Contact Group

Contact Factor

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XII

Hageman

Contact Group

Activates fibrinolytic and complement systems as well

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XIII

Fibrin-Stabilizing

Fibrinogen group

Transglutaminase that stabilizes fibrin

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HK

Fitzgerald

Contact group

Cofactor w PK and XI; contact factor

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PK

Fletcher

Contact Group

Contact factor w HK  in vitro