A+ is developed and maintained by leading IT experts. Content for the exams stems from a combination of industry-wide survey feedback and contributions from our team of subject matter experts. Learn more about the people behind the CompTIA A+ exam development and the CompTIA A+ Advisory Committee.
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 and most important blood vessel in the body. Originating from the heart, this aorta transports much-needed nutrients to the chest, abdomen, and legs. An aortic dissection occurs when the inner lining of the artery ruptures. Blood then floods the tear resulting in the separation (dissection) of its inner and central layers. If blood overflows beyond the outer wall of the aorta, aortic dissection can often result in death. Aortic dissection represents the most frequent trauma of the aorta and is 2-3 times more prevalent than abdominal aortic tearing.