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Coarctation of the aorta, or aortic narrowing (abbreviated as CoA), is a congenital condition whereby the aorta narrows in the area where the ductus arteriosus (ligamentum arteriosum after regression) inserts.: Coarctation (narrowing) of the aorta. 1:Inferior vena cava, 2:Right pulmonary veins, 3: Right pulmonary artery, 4:Superior vena cava, 5:Left pulmonary artery, 6:Left pulmonary veins, 7:Right ventricle, 8:Left ventricle, 9:Pulmonary artery, 10:Aorta.
The aorta is the largest blood vessel in the body. It carries freshly oxygenated blood out of the heart so that it can be distributed to the circulatory system. In most people, the aorta follows a relatively straight path, but in people with tortuous aorta, the vessel may be twisted or distorted.EarlyForest -- Sometimes tortuous aortas can indirectly cause abdominal aortic aneurysms, like pharmchick78 was talking about. Since a tortuous aorta is abnormal, sometimes the wall of the aorta can be weaker, leading to an aortic aneurysm, or, worst case scenario, an aortic aneurysm rupture.