Ascending lumbar vein

Vein: Ascending lumbar vein
The venæ cavæ and azygos veins, with their tributaries. (Ascending lumbar vein very faintly labeled at center right, vertically, below left kidney.)
Latin	vena lumbalis ascendens
Gray's	subject #172 667
Drains from	lateral sacral veins
Drains to	azygos vein, hemiazygos vein
Dorlands / Elsevier	v_05/12850866

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

The ascending lumbar vein is a vein that runs up through the lumbar region on the side of the vertebral column.

Structure

The ascending lumbar vein is a paired structure (i.e. one each for the right and left sides of the body). It starts at the lateral sacral veins, and it runs superiorly, intersecting with the lumbar veins as it crosses them.

When the ascending lumbar vein crosses the subcostal vein, it becomes one of the following:

• the azygos vein (in the case of the right ascending lumbar vein)
• the hemiazygos vein (in the case of the left ascending lumbar vein)

External links

• Norman/Georgetown thoraxlesson5 (postmediastinumlevel5)
• Ascending+lumbar+vein at eMedicine Dictionary
• Human anatomy at Dartmouth figures/chapter_29/29-4.HTM