4.The abdominal aorta is normally smaller than the thoracic aorta, and rupture of the abdominal aorta usually occurs at smaller sizes than in the thorax.
10.While in diastole, there were (1) antegrade in the transverse aorta, and retrograde in the ascending aorta and descending aorta (below FDA), and (2) left-to-right shunt in the FDA.