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Questions and Answers
What is the primary mechanism through which hemostasis is achieved when a blood vessel is severed?
What is the primary mechanism through which hemostasis is achieved when a blood vessel is severed?
Which factors contribute to the vascular constriction after a blood vessel has been cut or ruptured?
Which factors contribute to the vascular constriction after a blood vessel has been cut or ruptured?
What is responsible for much of the vasoconstriction in smaller vessels?
What is responsible for much of the vasoconstriction in smaller vessels?
What causes the smooth muscle in the blood vessel wall to contract immediately after a vessel has been cut or ruptured?
What causes the smooth muscle in the blood vessel wall to contract immediately after a vessel has been cut or ruptured?
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What are the main outcomes of hemostasis when a vessel is severed or ruptured?
What are the main outcomes of hemostasis when a vessel is severed or ruptured?
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What causes even more vasoconstriction in smaller vessels after they have been cut or ruptured?
What causes even more vasoconstriction in smaller vessels after they have been cut or ruptured?
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Which factor is necessary for the liver formation of five important clotting factors?
Which factor is necessary for the liver formation of five important clotting factors?
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What can lead to serious bleeding tendencies due to subsequent insufficiency of coagulation factors in the blood?
What can lead to serious bleeding tendencies due to subsequent insufficiency of coagulation factors in the blood?
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Which disease can often cause decreased production of prothrombin and some other clotting factors?
Which disease can often cause decreased production of prothrombin and some other clotting factors?
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What is the most prevalent cause of vitamin K deficiency?
What is the most prevalent cause of vitamin K deficiency?
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What does classic hemophilia (hemophilia A) result from?
What does classic hemophilia (hemophilia A) result from?
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How many males in the United States have classic hemophilia?
How many males in the United States have classic hemophilia?
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What does thrombocytopenia mean?
What does thrombocytopenia mean?
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Where does the bleeding usually occur in thrombocytopenia?
Where does the bleeding usually occur in thrombocytopenia?
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What is an abnormal clot that develops in a blood vessel called?
What is an abnormal clot that develops in a blood vessel called?
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What are freely flowing clots known as?
What are freely flowing clots known as?
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What can initiate the clotting process if present on a vessel's endothelial surface?
What can initiate the clotting process if present on a vessel's endothelial surface?
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What can cause disseminated intravascular coagulation?
What can cause disseminated intravascular coagulation?
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What is the main function of platelets in the formation of a platelet plug?
What is the main function of platelets in the formation of a platelet plug?
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What causes platelets to adhere to collagen in the tissues and to von Willebrand factor?
What causes platelets to adhere to collagen in the tissues and to von Willebrand factor?
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What is the role of thromboxane A2 in the mechanism of platelet plug formation?
What is the role of thromboxane A2 in the mechanism of platelet plug formation?
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Which factor is considered to be formed in two ways, the extrinsic pathway, and the intrinsic pathway?
Which factor is considered to be formed in two ways, the extrinsic pathway, and the intrinsic pathway?
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What is the most important factor for preventing clotting in the normal vascular system?
What is the most important factor for preventing clotting in the normal vascular system?
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What anticoagulant acts by inactivating activated Factors V and VIII?
What anticoagulant acts by inactivating activated Factors V and VIII?
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What is trapped in a clot along with other plasma proteins that will not become plasmin or cause lysis of the clot until it is activated?
What is trapped in a clot along with other plasma proteins that will not become plasmin or cause lysis of the clot until it is activated?
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Which protein binds thrombin and activates a plasma protein acting as an anticoagulant?
Which protein binds thrombin and activates a plasma protein acting as an anticoagulant?
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What is an important function of the endoplasmic reticulum and the Golgi apparatus in platelets?
What is an important function of the endoplasmic reticulum and the Golgi apparatus in platelets?
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What is the main role of growth factor released by platelets during platelet plug formation?
What is the main role of growth factor released by platelets during platelet plug formation?
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What causes successively increasing numbers of platelets to be activated at the site of any opening in a blood vessel wall?
What causes successively increasing numbers of platelets to be activated at the site of any opening in a blood vessel wall?
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