WordNet
n. the part of the aorta that arches and turns downward
Wikipedia
The aortic arch, arch of the aorta or the transverse aortic arch is the part of the aorta between the ascending and descending aorta. The arch travels backward, so that it ultimately runs to the left of the trachea.
Usage examples of "aortic arch".
He carefully freed the vena cava and the aortic arch from the surrounding tissue.
Her aortic arch, pulmonary artery, heart, and pericardial sac were penetrated.
There is evidence of coral-like building from the aortic arch on downward, as well as throughout the jugular.
Your pulmonary veins take the fresh blood to the right auricle, and the right ventricle pumps it through an aortic arch that swings over to the right.
Maxie Neville wanted to be the first man to resect the aortic arch, the big artery just north of the heart where blood starts its journey to every nook and cranny of the body.