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WB JEE Medical WB JEE Medical Solved Paper-2015

  • question_answer
    Intrinsic and extrinsic pathways of blood clotting are interlinked at the activation step of which of the following factors?

    A)  Factor IX           

    B)  Factor IV

    C)  Factor X            

    D)  Factor Xllla

    Correct Answer: C

    Solution :

     The blood coagulation cascade has 2 initial pathways that leads to fibrin formation. These are contact activation pathway (intrinsic pathway) and tissue factor pathway (extrinsic pathway) which both leads to fundamental reactions that produce fibrin. These two pathways activate the final common pathway of factor X, thrombin and fibrin. The pathways of mechanism of blood clotting are as follows:


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