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| Aorta, Thoracic Aorta, Descending | Aortic Arch | Aortas, Descending | Aortas, Thoracic | Arch, Aortic | Descending Aorta | Descending Aortas | Thoracic Aorta | Thoracic Aortas The portion of the descending aorta proceeding from the arch of the aorta and extending to the diaphragm. |