part_of part of part of channel for channels_from channels_into blood heart artery anatomical conduit mesoderm-derived structure outflow tract EHDAA2:0001351 The outflow tract is the portion of the heart through which blood flows into the arteries. cardiac outflow tract VHOG:0000670 arterial (outflow) pole heart outflow tract UBERON:0004145 MA:0000100 The outflow tract is the portion of the heart through which blood flows into the arteries XAO:0004139 EHDAA:798 EMAPA:16346 EHDAA:464