How are arterial thrombosis?

Triggered by alteration of arterial wall, obliterating, rich in platelets (process of formation activates platelets). Main cause is atherosclerosis associated w/loss of endothelial integrity and abnormal blood flow, less common can be due to primary inflammatory damage (arteritis/angiitis) or deformation of wall (aneurysm) Most common location (arteries affected by atherosclerosis, coronary>cerebral>femoral but also renal and mesenteric arteries. Occurs in arterial wall, whitish grey, friable places, main consequence is local ischemia and risk of embolism in upper circulation.