Aortic Arch

An arched highest part of aorta situated between the ascending and descending parts of the aorta. From the aortic arch spring the large arterys for the head and the arms.

The usual aortic arch shows only the

Exit of Truncus brachiocephalicus (supplies the carotis communis dextra and subclavia dextra arteries),

it will follow

the "Arteria carotis communis sinistra" and

the "Arteria subclavia sinistra".

"Normal aortic arch.

Anomalies of aortic arch

Approximately 26% of the patients have anomalies of the aortic arch that are not symptomatic and are only diagnosed during imaging. However, knowledge of this can be important in the context of surgical and endovascular therapy. About 60 % of the cases of aortic dissection are located in the aortic arch.

Here you can see examples of anomalies of the aortic arch (according to Lippert and Pabst).

Truncus brachiocephalicus (with Arteria subclavia dextra and Arteria carotis communis dextra) AND the Arteria carotis communis sinistra arise together from the aortic arch (in 13% of the cases)

In addition to the subclavian dextra artery and the carotis communis dextra artery, the carotis communis sinistra artery is also derived from the truncus brachiocephalicus (in 9% of cases).

Es gibt zwei Trunci brachiocephalici, jeweils mit der Arteria subclavia dextra und Arteria carotis communis dextra bzw. mit der Arteria subclavia sinistra und Arteria carotis communis sinistra (in 1% der Fälle)

Die Arteria subclavia dextra entspringt erst nach der Arteria subclavia sinistra aus dem Aortenbogen

Aortenbogen mit separatem Abgang der linken Arteria vertebralis

https://de.wikipedia.org/wiki/Aortenbogen _{(Wikipedia CC-by-sa-3.0)}