aortic arch

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aortic arch

n.
1. The curved portion of the aorta between the ascending and descending portions that gives rise to the brachiocephalic trunk, the left carotid artery, and the left subclavian artery.
2. One of a series of paired arteries in a vertebrate embryo that connects the ventral arterial system to the dorsal arterial system.

aor′tic arch′



n.
one member of a series of paired curved blood vessels that arise in the embryo from the ventral aorta, pass around the pharynx through the branchial arches, and join with the dorsal aorta to form the great vessels of the head and neck.
[1900–05]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.aortic arch - the part of the aorta that arches and turns downwardaortic arch - the part of the aorta that arches and turns downward
aorta - the large trunk artery that carries blood from the left ventricle of the heart to branch arteries
References in periodicals archive ?
However, when ARSCA variant is present, the brachiocephalic trunk is absent and four large arteries arise from the arch of the aorta arises: The RCCA, the LCCA, the LSCA, and the ARSCA also known as arteria lusoria.
A diagnosis of SSS was made and patient was treated with a gortex graft from the arch of the aorta to the second portion of the left subclavian artery.
3 and 4) showed a large mycotic aneurysm arising off the arch of the aorta, distal to the left subclavian artery.