aortic arch

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aortic arch

[ā′ȯrd·ik ′ärch]
(anatomy)
The portion of the aorta extending from the heart to the third thoracic vertebra; single in warm-blooded vertebrates and paired in fishes, amphibians, and reptiles.
References in periodicals archive ?
Similarly, in the sparrowhawk we observed that arch of the aorta displayed a craniodorsal curvature and blood was carried to head, neck, wing and pectoral regions by the brachiocephalic trunks.
The subclavian artery was then bypassed with 6 mm ringed gortex graft from the arch of the aorta to the second portion of the left subclavian artery (Figure-2).
There was moderate atherosclerosis in the arch of the aorta, but this was not complicated by a penetrating ulcer, aneurysmal dilatation, or pseudoaneurysm formation.