MEDICINE MCQ
INFECTIOUS DISEASES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Fibrinogen turns into fibrin
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Platelets release clotting factors
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Fibrinogen is converted into thrombin
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Thrombin is converted into prothrombin
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Detailed explanation-1: -The platelet plug is the first step to stop bleeding, but it isn’t stable enough to stay in place without help. The next step, which stabilizes the plug, is secondary hemostasis.
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: -Platelets clump together to form a plug to close the wound. A clot then forms over the top. The injury heals and the clot dissolves. The platelet plug can’t last very long by itself, so a stronger clot is needed to completely stop the bleeding.
Detailed explanation-4: -The three steps to platelet plug formation are platelet adherence, activation, and aggregation.
Detailed explanation-5: -The blood vessel narrows. First, chemical signals cause the injured vessels to narrow to prevent more blood from leaking out. Platelets travel to the site of the injury. A platelet plug forms. The blood clot forms. 24-Mar-2022