THE HUMAN IMMUNE SYSTEM
TRANSFUSION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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vascular spasms constrict the flow of blood
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platelet plug forms, platelets adhere
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coagulation form fibers, scab forms
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thromus breaks away from vessel wall
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Detailed explanation-1: -Primary hemostasis is when your body forms a temporary plug to seal an injury. To accomplish that, platelets that circulate in your blood stick to the damaged tissue and activate. That activation means they can “recruit” more platelets to form a platelet “plug” to stop blood loss from the damaged area.
Detailed explanation-2: -Vascular spasm is the first response as the blood vessels constrict to allow less blood to be lost. In the second step, platelet plug formation, platelets stick together to form a temporary seal to cover the break in the vessel wall. The third and last step is called coagulation or blood clotting.
Detailed explanation-3: -The mechanism of hemostasis can divide into four stages. 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-4: -During hemostasis, a brief spasm of vasoconstriction occurs, which slows blood flow into the injured area while the clot forms.