embryonic cardioblast embryonic aortic cardioblast 2008-12-03T03:11:58Z fly_anatomy.ontology Cardioblast which is the precursor of cardial cells of the aorta in the anterior dorsal vessel. These cells become distinct from heart cardioblasts during stage 14: they remain small and cuboidal while the heart cardioblasts enlarge and elongate to become columnar. embryonic anterior cardioblast FBbt:00007323