Aorta, coarctation of the: A constriction of the aorta. At the point of coarctation, the sides of the aorta appear to be pressed together. Blood pressure is increased above the constriction, and the flow of blood is impeded below the level of the constriction. Symptoms may not be evident at birth but can develop as soon as the first week after birth, with congestive heart failure or high blood pressure that call for early surgery. The outlook after surgery is usually favorable. Some cases of coarctation of the aorta have been treated with balloon angioplasty.
- Aorta, ascending
Aorta, ascending: The ascending aorta is the first section of the aorta, the largest artery in the body. The ascending aorta starts from the left ventricle of the heart and extends to the arch (the bend) of the aorta. The right and left coronary arteries that supply blood to the heart muscle arise from the […]
- Aorta, descending
Aorta, descending: The descending aorta is the part of the aorta, the largest artery in the body, that runs down through the chest and the abdomen. The descending aorta starts after the arch of the aorta and ends by splitting into two great arteries (the common iliac arteries) that go to the legs. The descending […]
- Aorta, thoracic
Aorta, thoracic: The thoracic aorta is a section of the aorta, the largest artery in the body, within the chest. Specifically, the thoracic aorta is that part of the aorta that starts after the arch of the aorta and runs down to the diaphragm, the great muscle that separates the chest from the abdomen. The […]
Aortal: Pertaining to the aorta, the largest artery in the body. Aortal is not often encountered (except in The New York Times crossword). The preferred term is aortic.
Aortic: Pertaining to the aorta, the largest artery in the body. “Aortic” is in common usage as, for example, in an abdominal aortic aneurysm. The term “aortal” has the same meaning but is rarely encountered (except in The New York Times crossword).