What four components contribute to hemostasis?

Vascular response - smooth muscle in vascular wall constricts to reduce blood flow. platelet plug formation - platelets stick to each other to form a temporary seal the development of the fibrin clot - Thrombin converts fibrinogen into fibrin to form a stable fibrin mesh clot lysis of the clot - Tissue plasminogen activator (tPA) converts plasminogen to plasmin, digesting the fibrin strands and dissolving the clot