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The three stages of blood clotting are the vascular phase, the platelet phase and the coagulation phase. The entire process of blood clotting may be referred to as hemostasis. The process takes place in order to prevent the body from losing too much blood due to injury.


1. Blood-clotting mechanism has been analyzed by a procedure which devotes a separate experimental step to each of the three primary reactions: 1. Prothrombokinase → thrombokinase 2. Prothrombin → thrombin 3. Fibrinogen → fibrin 2. Activation of prothrombin by thrombokinase followed the course ...


ADVERTISEMENTS: In this article we will discuss about the mechanisms and stages of blood clotting. Mechanism of Blood Clotting: Blood Clotting is one of three mechanisms that reduce the loss of blood from broken blood vessels. The three Mechanisms are: ADVERTISEMENTS: i. Vascular Spasm: The smooth muscle in blood vessel walls contracts immediately the blood […]


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Hemostasis occurs when blood is present outside of the body or blood vessels. It is the innate response for the body to stop bleeding and loss of blood. During hemostasis three steps occur in a rapid sequence. Vascular spasm is the first response as the blood vessels constrict to allow less blood to be lost.


Blood clotting or coagulation is a biological process that stops bleeding. It's vital that blood clots when we have a surface injury that breaks blood vessels. Clotting can prevent us from bleeding to death and protect us from the entry of bacteria and viruses. Clots also form inside our body when a blood vessel is injured.


Steps of Hemostasis. Hemostasis includes three steps that occur in a rapid sequence: (1) vascular spasm, or vasoconstriction, a brief and intense contraction of blood vessels; (2) formation of a platelet plug; and (3) blood clotting or coagulation, which reinforces the platelet plug with fibrin mesh that acts as a glue to hold the clot together.


Blood clotting is a complex series of events that requires exacting chemical balances. The mechanism itself follows a precise order. The University of Illinois School of Medicine says prior to clotting itself, the body prepares by constricting the injured vessel to slow blood loss. Platelets aggregate at the site of the injury to form a temporary plug but the actual clotting process occurs in ...


Blood clotting is an important feature of the vascular system. Blood clotting (technically blood coagulation) is the process by which (liquid) blood is transformed into a solid state. The clotting process involves three mechanisms. They are formation of prothrombinase, prothrombin converted into the enzyme thrombin and fibrinogen (soluble) converted to fibrin (insoluble).


1. immediately after injury vascular constriction occurs at injury site which limits the flow of blood to the area of injury. Coagulation of the blood is initiated by the blood platelets.