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aortic arch

   Also found in: Dictionary/thesaurus, Medical, Financial, Wikipedia, Hutchinson 0.01 sec.
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.


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The mass encircled the aortic arch and pulmonary artery and extended to the cardiac base.
pdf)], relatively weak CYP1A immunofluorescence was observed predominantly in vessels most proximal to the heart, including the first aortic arch and the carotid artery (Figure 1D,G).
Immediate surgical intervention was performed by implantation of an aortic arch (St.
 
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