Subcostal arteries
5005843
154091472
2007-08-28T03:09:31Z
Arcadian
104523
Subcostal vein
{{Infobox Artery |
Name = {{PAGENAME}} |
Latin = arteria subcostalis |
GraySubject = 153 |
GrayPage = 601 |
Image = |
Caption = |
Image2 = |
Caption2 = |
BranchFrom = [[thoracic aorta]] |
BranchTo = |
Vein = [[subcostal vein]] |
Supplies = |
MeshName = |
MeshNumber = |
DorlandsPre = a_61 |
DorlandsSuf = 12156049 |
}}
The '''subcostal arteries''', so named because they lie below the last [[ribs]], constitute the lowest pair of branches derived from the [[thoracic aorta]], and are in series with the [[intercostal arteries]].
Each passes along the lower border of the twelfth rib behind the [[kidney]] and in front of the [[Quadratus lumborum muscle]], and is accompanied by the [[twelfth thoracic nerve]].
It then pierces the posterior aponeurosis of the [[Transversus abdominis]], and, passing forward between this muscle and the [[Obliquus internus]], [[anastomoses]] with the [[superior epigastric]], [[lower intercostal]], and [[lumbar arteries]].
Each subcostal artery gives off a posterior branch which has a similar distribution to the [[posterior ramus]] of an intercostal artery.
==External links==
* {{GPnotebook|1939472444}}
* {{SUNYAnatomyFigs|21|06|06}} - "Branches of the [[ascending aorta]], [[arch of the aorta]], and the [[descending aorta]]."
* {{eMedicineDictionary|subcostal+artery}}
{{Gray's}}
{{circulatory-stub}}
{{Arteries of chest}}