
The arch of the aorta or the transverse aortic arch (k) is the part of the aorta that begins at the level of the upper border of the second sternocostal articulation of the right side, and runs at first upward, backward, and to the left in front of the trachea; it is then directed backward on the left side of the trachea and finally passes downwar...
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http://en.wikipedia.org/wiki/Aortic_arch

(from the article `animal development`) From the paired forward extensions from the heart, the ventral aortas, loops develop between the pharyngeal clefts. These are the aortic arches, ...
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http://www.britannica.com/eb/a-z/a/86

The curved portion between the ascending and descending parts of the aorta; it begins as a continuation of the ascending aorta posterior to the sternal angle, runs posteriorly and slightly to the left as it passes over the root of the left lung, and becomes the descending aorta as it reaches and begins to course along the vertebral column; it gives...
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http://www.encyclo.co.uk/local/20973

the curving portion between the ascending aorta and the descending aorta, giving rise to the brachiocephalic trunk, the left common carotid artery, and the left subclavian artery. Aortic arch. in fishes and amniote embryos, a series of paired vessels arching from the ventral ...
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http://www.encyclo.co.uk/local/21001

The portion of the aorta which bends over inorder to extend into the thorax.
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http://www.encyclo.co.uk/local/21447

Type: Term Synonyms: arch of the aorta
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http://www.medilexicon.com/medicaldictionary.php?t=5955

Aortic arch: The second section of the aorta. The aorta first ascends, then bends, and then descends. The bend is the aortic arch. It gives off the brachiocephalic trunk, the left common carotid artery, and the left subclavian artery. The brachiocephalic trunk, the first branch off the aortic arch, splits to form the right subclavian artery and the...
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http://www.medterms.com/script/main/art.asp?articlekey=8637

The superior left bend of the aorta between the ascending and descending portions.
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http://www.mhhe.com/biosci/abio/glossary.mhtml

[
n] - the part of the aorta that arches and turns downward
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http://www.webdictionary.co.uk/definition.php?query=aortic%20arch

The curve of the aorta, just after it exits the left ventricle of the heart. In birds, the aorta curves to the bird's right as it passes dorsal to the heart and toward the backbone, but in mammals, the aorta curves to the left.
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https://academy.allaboutbirds.org/bird-academys-a-to-z-glossary-of-bird-ter
noun the part of the aorta that arches and turns downward
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https://www.encyclo.co.uk/local/20974

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.
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https://www.infoplease.com/dictionary/aortic-arch

the curved portion of the aorta (the large blood vessel that carries oxygen-rich blood away from the heart to the body).
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https://www.stanfordchildrens.org/en/topic/default?id=glossary---cardiovasc
No exact match found.