part of part_of part of part_of channel for channels_from channels_into blood heart artery anatomical conduit mesoderm-derived structure outflow tract Depending on the species, attached at the cardiac outflow are described the conus arteriosus, the truncus arteriosus and, or the bulbus arteriosus. At the distal limit of these outflow structures, but lying outside the pericardial cavity, is the ventral aorta[PMID:20735616] EHDAA2:0001351 EHDAA:464 EHDAA:798 EMAPA:16346 MA:0000100 The outflow tract is the portion of the heart through which blood flows into the arteries UBERON:0004145 VHOG:0000670 XAO:0004139 arterial (outflow) pole cardiac outflow tract heart outflow tract uberon