Aortic Arch

Aortic Arch

The arch of the aorta or the transverse aortic arch ( /eɪˈɔrtɪk/) 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 downward on the left side of the body of the fourth thoracic vertebra, at the lower border of which it becomes continuous with the descending aorta.

It thus forms two curvatures: one with its convexity upward, the other with its convexity forward and to the left. Its upper border is usually about 2.5 cm. below the superior border to the manubrium sterni.

It lies within the mediastinum.

Read more about Aortic ArchRelated Structures, Additional Images

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Interrupted Aortic Arch
... Interrupted aortic arch is a very rare heart defect (affecting 3 per million live births) in which the aorta is not completely developed ... Interrupted aortic arch is often associated with DiGeorge Syndrome ...

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