IGNOU MVE 2 2026 - Give the mechanism of blood coagulation. Discuss the role of

Question

Give the mechanism of blood coagulation. Discuss the role of vitamin K in coagulation.

10 May 2026

Answer :

Word Count : 313

Blood coagulation is a complex physiological process that prevents excessive bleeding when blood vessels are injured. It involves a sequence of enzymatic reactions collectively known as the coagulation cascade, which leads to the transformation of soluble fibrinogen into insoluble fibrin, forming a stable blood clot. The cascade is divided into three pathways: the intrinsic pathway, the extrinsic pathway, and the common pathway. The intrinsic pathway is activated by trauma inside the vascular system and involves factors XII, XI, IX, and VIII. The extrinsic pathway is triggered by external

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