part of part of develops from develops from has developmental contribution from has developmental contribution from contributes to morphology of Homo sapiens ascending aorta http://upload.wikimedia.org/wikipedia/commons/e/e6/Gray506.svg https://cdn.humanatlas.io/digital-objects/ref-organ/blood-vasculature-female/v1.3/assets/3d-vh-f-blood-vasculature.glb https://cdn.humanatlas.io/digital-objects/ref-organ/blood-vasculature-male/v1.3/assets/3d-vh-m-blood-vasculature.glb pars ascendens aortae UBERON:0001496 Wikipedia:Ascending_aorta EHDAA2:0000147 ascending thoracic aorta UMLS:C0003956 pars ascendens aortae MA:0002570 EMAPA:17014 aorta ascendens FMA:3736 SCTID:181299009 EHDAA:9828 The ascending aorta is the portion of the aorta in a two-pass circulatory system that lies between the heart and the arch of aorta[GO]. A portion of the aorta commencing at the upper part of the base of the left ventricle, on a level with the lower border of the third costal cartilage behind the left half of the sternum; it passes obliquely upward, forward, and to the right, in the direction of the heart's axis, as high as the upper border of the second right costal cartilage, describing a slight curve in its course, and being situated, about 6 cm behind the posterior surface of the sternum. The total length is about 5 cm in length [Wikipedia]. NCIT:C32150 thoracic aorta truncus arteriosus outflow tract aortic component aortic sac