Organovascular arterial ischemic diseases (cardiovascular, cerebrovascular, extremitovascular, renovascular, genitovascular, pulmovascular, mesenterovascular, dermovascular, oculovascular, otovascular, stomatovascular etc.) are an important manifestations of systemic atherosclerosis and other arterial diseases of vascular system (arteriolosclerosis/arteriolonecrosis; diabetic macroangiopathy; diabetic microangiopathy; Mönckeberg´s mediosclerosis/mediocalcinosis; arteritis - vasculitis; syndromes of arterial compression; fibromuscular dysplasia; cystic adventitial degeneration; arterial thrombosis; arterial embolism/thromboembolism; traumatic and posttraumatic arteriopathies; physical arteriopathies; chemical and toxic arteriopathies; iatrogenic arterial occlusions; dissection of aorta and of arteries; coiling; kinking; complicated arterial aneurysms; arteriovenous fistula, rare vascular diseases). Key clinical-etiology-anatomy-pathophysiology (CEAP) aspects of the mesenteriovascular arterial ischemic diseases are discussed in this article (project Vessels).