HUMAN PHYSIOLOGY
BODY FLUIDS AND CIRCULATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is the correct order of these events? 1. Conversion of fibrinogen to fibrin 2. Clot retraction and leakage of serum 3. Thromboplastin formation 4. Conversion of prothrombia to thrombin
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3, 2, 1, 4
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3, 4, 1, 2
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3, 4, 2, 1
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4, 1, 3, 2
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Explanation:
Detailed explanation-1: -Blood coagulation occurs in the following sequence: Whenever there is rupture of blood vessels or damage is caused to blood, a complex of substances called prothrombin activator complex is formed. The activators convert prothrombin into thrombin. Thrombin acts as an enzyme and converts fibrinogen into fibrin threads.
Detailed explanation-2: -1) Constriction of the blood vessel. 2) Formation of a temporary “platelet plug.” 3) Activation of the coagulation cascade. 4) Formation of “fibrin plug” or the final clot.
Detailed explanation-3: -Prothrombinase to Prothrombin to Thromboplastin to Thrombin.
There is 1 question to complete.