part of aorta embryo ventral aorta 2010-05-12T10:57:59Z BTO:0004674 BrendaTissueOBO The artery in vertebrate embryos that carries blood from the ventricle of the heart to the aortic arches. In adult fish it branches into afferent branchial arteries supplying the gills. In adult tetrapods it is represented by the ascending part of the aorta. mgr