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]]