develops_from develops from has developmental contribution from has developmental contribution from descending aorta EMAPA:18606 FMA:3784 MA:0002571 NCIT:C32455 OpenCyc:Mx4rv4EE35wpEbGdrcN5Y29ycA The descending aorta is the portion of the aorta in a two-pass circulatory system from the arch of aorta to the point where it divides into the common iliac arteries[GO]. The descending aorta is part of the aorta, the largest artery in the body. The descending aorta is the part of the aorta beginning at the aortic arch that runs down through the chest and abdomen. The descending aorta is divided into two portions, the thoracic and abdominal, in correspondence with the two great cavities of the trunk in which it is situated. Within the abdomen, the descending aorta branches into the two common iliac arteries which serve the legs. [WP,unvetted]. UBERON:0001514 UMLS:C0011666 aorta descendens pars descendens aortae pars descendens aortae results from fusion of left and right dorsal aortae uberon left dorsal aorta right dorsal aorta section of aorta dorsal aorta