part of part_of part of part_of develops_from develops from artery embryonic structure truncus arteriosus EHDAA2:0004143 EMAPA:35887 FMA:70301 GAID:554 MA:0000103 MESH:D014338 NCIT:C34317 OpenCyc:Mx4rquH9YKgNEdudWQACs5b6Bw The truncus arteriosus and bulbus cordis are divided by the aorticopulmonary septum. The truncus arteriosus gives rise to the ascending aorta and the pulmonary trunk. The bulbus cordis gives rise to the smooth parts (outflow tract) of the left and right ventricles. UBERON:0002061 UMLS:C1519589 assume spelling error for ncit uberon heart blood vessel outflow tract aortic sac primitive heart tube structure with developmental contribution from neural crest