part_of part of part of contributes to morphology of thoracic segment of trunk aorta thoracic aorta NCIT:C33766 galen:ThoracicAorta pars thoracica aortae Wikipedia:Thoracic_aorta EMAPA:18603 FMA:3786 SCTID:302510009 GAID:471 MA:0002569 MESH:D001013 UBERON:0001515 The part of the aorta that extends from the origin at the heart to the diaphragm, and from which arises numerous branches that supply oxygenated blood to the chest cage and the organs within the chest. aorta thoracalis EFO:0002525 aorta thoracica BTO:0000157 thoracic part of aorta section of aorta