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aortic arch

noun

, Embryology.
  1. 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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Word History and Origins

Origin of aortic arch1

First recorded in 1900–05
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Example Sentences

The mandibular aortic arch is situated close to its inner side, Pl.

Modifications of pattern in the aortic arch system of birds and their phylogenetic significance.

Remnants of the left aortic arch persist sometimes in the shape of a ligamentous strand.

The second arch becomes the aortic arch, the third the left exterior carotid.

It may be well to observe that in birds the one aortic arch turns to the right, while in mammals it turns to the left.

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aortaaortic insufficiency