Hemostasis: Quiz

Question 1: Platelet plug formation - ________ adhere to damaged endothelium to form platelet plug (primary hemostasis) and then degranulate.
Red blood cellPlateletBlood plasmaBlood

Question 2: The endothelial cells of intact vessels prevent blood coagulation by secretion of heparin like molecule and thrombomodulin and prevent platelet aggregation by the secretion of ________ and prostacyclin.
Carbon monoxideNitrous oxideNitric oxideHydrogen sulfide

Question 3: Blood ________ - Clots form upon the conversion of fibrinogen to fibrin, and its addition to the platelet plug (secondary hemostasis).
Factor XCoagulationFibrinolysisTissue plasminogen activator

Question 4: When endothelial injury occurs, the endothelial cells cease secretion of coagulation and aggregation inhibitors and instead secrete ________ and tissue thromboplastin which initiate the maintenance of hemostasis after injury.
AntithrombinFactor XVon Willebrand factorPlasmin

Source: The Full Wiki (http://quiz.thefullwiki.org/Hemostasis)