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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. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The two most common aortic arch anomalies that cause airway compression are (1) a double aortic arch and (2) a right aortic arch with an aberrant left subclavian artery and left ligamentum arteriosum. Aortic arch anomalies are the result of abnormal embryologic development with patency of a vascular segment that should have normally regressed. |
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