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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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
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