blood vessel constriction thoracic aorta constriction 2018-12-27T15:10:16Z TAC This is any condition in which the main influencing factor is surgical narrowing of the lumen of the thoracic aorta. The thoracic aorta consists of the ascending aorta, the aortic arch, and the descending thoracic aorta. XCO:0000598 experimental_condition_ontology sjwang thoracic aortic constriction transverse aortic constriction