AP quiz+answers - Weekly quiz PDF

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All are true of an embolus except: is a common cause of thrombosis Petechiae are pin-head size haemorrhages in tissues All are true of an infarct except: in the heart if not fatal can be replaced by scar tissue is usually circular in shape

Lines of Zahn represent bands platelets and fibrin alternating with trapped red blood cells The four components of the haemostatic mechanism include the following except: vasodilatation White thrombi occur in ? Arterial vessels

Foam cells in atheromatous plaques develop from two cell types, they are: myointimal cells and macrophages

All are true of atheroma except: is a plaque-like deposit in the media of vessels All are true of arteriolosclerosis except: is a identical to atherosclerosis Complications of arterial plaques in atherosclerosis include all of the following except: vascular occlusion can lead to intussusception Virchow’s triad for thrombus formation includes the following set of criteriaweakness in medium of blood vessel, altered blood flow and activation of the clotting mechanism changes in pattern of blood flow, blood constituents and vessel wall All are true of thrombi except: occur after blood flow has ceased All are true of an aneurysm except:

occurs early in acute inflammation...