aortic arch

American  

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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Etymology

Origin of aortic arch

First recorded in 1900–05

Example Sentences

See Examples For:

aortic arch

Mice lacking the receptor developed significantly less plaque in the aorta and aortic arch, although some plaque remained in the pulmonary artery.

From Science Daily ● Jun. 9, 2026

Researchers also showed that vagal nerve cells in the heart’s aortic arch, which help regulate blood pressure, are not part of the pathway.

From Science Magazine ● Nov. 1, 2023

That in turn loops under the aortic arch, part of the large artery carrying blood from the heart, and then travels back up the neck to the vocal cords.

From Scientific American ● Sep. 29, 2022

A cardiology team deployed the arsenal that saved him: the drips that kept his circulation going, the surgery that closed the holes in his heart and gave him a new aortic arch.

From The New Yorker ● Jan. 15, 2017

The front branchial arch here, as in all higher vertebrata, becomes the carotid arch; the lingual represents the base of a pre-branchial vessel; the second branchial becomes the aortic arch.

From Text Book of Biology, Part 1: Vertebrata by Wells, H. G. (Herbert George)