arch of the aorta


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arch of the a·or·ta

the curved portion of the aorta between its ascending and descending parts; it begins as a continuation of the ascending aorta posterior to the sternal angle, runs posteriorly and slightly to the left as it passes over the root of the left lung, and becomes the descending aorta as it reaches and begins to course along the vertebral column; it gives rise to the brachiocephalic trunk, the left common carotid, and the left subclavian arteries;
Synonym(s): arcus aortae [TA], aortic arch
Farlex Partner Medical Dictionary © Farlex 2012
References in periodicals archive ?
GCA predominantly affects the cranial branches of arteries arising from the arch of the aorta, and often coexists with polymyalgia rheumatica (a generalized stiffness and aching of the muscles around the neck and shoulders), according to Dr.
Postcontrast scans taken at the level of the arch of the aorta and main pulmonary artery show focal loss of planes with the great vessels.
A definition of continuous use of a device is provided as "uninterrupted actual use for the intended purpose or use of the device discontinued only for immediate replacement by the same or identical medical device." Getting more specific, the central circulatory system is extended to the arch of the aorta and descending aorta.