part of part_of part of part_of continuous_with continuous with heart artery pulmonary trunk An arterial trunk which is continuous with the heart and branches into the pulmonary arteries. An arterial trunk with origin from the right ventricle of the heart, and dividing into the right and left pulmonary arteries, which enter the corresponding lungs and branch with the bronchi. [TFD][VHOG] As in birds, the conus arteriosus split during embryonic development in mammals to produce the pulmonary trunk and single aortic trunk of the adult.[well established][VHOG] EHDAA2:0001576 EHDAA:9831 EMAPA:17015 FMA:8612 MA:0002033 NCIT:C116918 OpenCyc:Mx4rv-6d0ZwpEbGdrcN5Y29ycA UBERON:0002333 VHOG:0001134 galen:PulmonaryTrunk main pulmonary artery pulmonary artery (trunk) trunk of pulmonary arterial tree uberon pulmonary vascular system