Root arteries follow the pasigraphy structure like aorta , arch of aorta , brachiocephalic artery , common carotid artery , internal carotid artery , external carotid artery , subclavian artery , brachial artery , femoral artery , axillary artery , thoracic aorta , superior mesenteric artery , celiac trunk , inferior mesenteric artery , iliac artery , external iliac artery , internal iliac artery.