| overriding aorta | A congenitally malpositioned aorta whose origin straddles the ventricular septum and so receives ejected blood from the right ventricle as well as from the left; it is found especially in tetralogy of Fallot. (05 Mar 2000) |
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| thoracic aorta | The part of the descending aorta that supplies structures as far down as the diaphragm. Synonym: pars thoracica aortae, aorta thoracica, thoracic part of aorta. (05 Mar 2000) |
| thoracic part of aorta | The part of the descending aorta that supplies structures as far down as the diaphragm. Synonym: pars thoracica aortae, aorta thoracica, thoracic part of aorta. (05 Mar 2000) |
| tortuous aorta | <radiology> Hypertension, aortic insufficiency (not AS), coarctation, cystic medial necrosis (Marfan, Ehlers-Danlos, homocystinuria), premature atherosclerosis (chronic renal disease, hypercholesterolaemia) (12 Dec 1998) |
| kinked aorta | Distortion, often with slight narrowing, of the aortic arch at the level of insertion of the ligamentum arteriosum. Synonym: buckled aorta, kinked aorta. (05 Mar 2000) |