Circulation (bd)
Case1. case1 1Clavicular companion shadow2Trachea3Aortic arch (knob)4Lateral border of descending aorta5Main pulmonary artery 6Azygo- esophageal line7Posterior.
Cardiovascular System
Blood Flow Heart Lungs Heart Body. AORTA - artery Vena Cava - vein Atria Ventricles.
