HONR 1034 Lecture Notes - Lecture 5: Vasoconstriction, Thrombosis, Anticoagulant
Document Summary
A. hemostatic system helps ensure that blood is confined to and flows freely within the. Primary hemostasis; balance between whether blood will bleed or clot. I. intro to hemostasis circulatory system number of distinct systems: vascular system, blood platelets, blood coagulation system,fibrinolytic system. 1. not a single biological pathway but the product of complex interactions of a. B. issues: hemorrhage, intravascular thrombosis (blood clots) and embolism. C. regulates interactions btwn components of the vessel wall, circulating blood platelets,and plasma proteins. D. arrest of bleeding: vasoconstriction (narrowing of blood vessels) to help prevent further blood. 2. formation of a hemostatic plug(a thrombus or clot ) derived from platelets and. 3. defect in hemophilia: not enough fibrin material to clot so bleeding starts. 1. oxygenated blood: lungs to pulmonary vein to heart (left artery, left loss. E. systemic and pulmonary circulatory systems fibrin strands in which rbc"s/wbc"s are trapped; physiological occurence. Artery to (lungs to pulmonary vein to heart (la, lv, etc. )
