Dorsal aorta 4769989 164637014 2007-10-15T03:00:40Z Arcadian 104523 /* External links */ link {{Infobox Embryology | Name = {{PAGENAME}} | Latin = aorta dorsalis | GraySubject = 135 | GrayPage = 506 | Image = Gray459.png | Caption = Human [[embryo]] of about fourteen days, with [[yolk-sac]]. (Dorsal aorta labeled twice at left.) | Image2 = Gray472.png | Caption = Profile view of a human embryo estimated at twenty or twenty-one days old. (Dorsal aorta labeled at center left.) | System = | CarnegieStage = 9 | Precursor = | GivesRiseTo = | MeshName = | MeshNumber = | DorlandsPre = | DorlandsSuf = | }} Each [[primitive aorta]] receives anteriorly a vein—the [[vitelline vein]]—from the [[yolk-sac]], and is prolonged backward on the lateral aspect of the [[notochord]] under the name of the '''dorsal aorta'''. The dorsal aortæ give branches to the yolk-sac, and are continued backward through the body-stalk as the [[umbilical arteries]] to the [[villi]] of the [[chorion]]. The two dorsal aortae combine to become the [[descending aorta]] in later development. ==External links== * {{EmbryologyTemple|Heart98/heart97a/sld017}} * {{EmbryologyUNSW|Notes/git}} * {{EmbryologyUNC|cardev|009}} {{Development of circulatory system}} [[Category:Embryology]]