Abdominal aorta Continuation of thoracic aorta at aortic hiatus of diaphragm in front of T12 ▣Terminates at lower border of L4 vertebra by dividing into right and left common iliac arteries ▣13cmAbdominal aorta ❑ Continuation of thoracic aorta at aortic hiatus of diaphragm in front of T12 ❑ Terminates at lower border of L4 vertebra by dividing into right and left common iliac arteries ❑ 13cm