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Hemostasis

Prevention of Blood Loss

QuestionAnswer
What factors are used to create Hemostasis? Vascular Spasm, Coagulation, Anti-coagulation
What is the definition of Vascular spasm? constriction of Arteirioles when cut
How are Sympathetic Fibers associated with Vascular Spasm? Pain --> reflex excitation of Sympathetic Fibers --> Vascular Smooth Muscle
How is Serotonin associated with Vascular Spasm? Local release of Serotonin from Platelets causes Vasoconstriction
What is the definition of Coagulation? formation of fibrous Protein network which traps Blood Cells creating a Thrombus
Name 2 Anticoagulants? Heparin, Coumarin
What is the function of Heparin? Thrombin INHIBITOR; released from Basophils and/or Liver & Lungs
What is the function of Coumarin? Vitamin K ANTAGONIST
What are Fibrinolysins? Clot Busters
Name a Fibrinolysin and its function. Plasmin - HYDROLYZES Fibrin; released from Vascular Endothelium as Tissue Plasminogen Activator (tPA)
Created by: Kristel