Lumbar arteries
Citation, DOI, disclosures and article data
At the time the article was created Matthew Lukies had no recorded disclosures.
View Matthew Lukies's current disclosuresAt the time the article was last revised Charles Beames had no recorded disclosures.
View Charles Beames's current disclosures- Lumbar artery
The lumbar arteries are paired branches of the abdominal aorta arising in the lumbar region.
Gross anatomy
Origin
There are most commonly four paired lumbar arteries originating as posterolateral branches of the abdominal aorta on either side, at the level of L1-4.
Course
The paired arteries course posterolaterally along the vertebral bodies, the right-sided arteries posterior to the inferior vena cava (IVC), then pass under the tendinous arches of psoas major and sympathetic trunks. After crossing quadratus lumborum, the arteries enter the space between the transversus abdominis and internal oblique muscles. There are anastomoses with the lower intercostal, subcostal, iliolumbar, deep circumflex iliac, inferior epigastric and contralateral lumbar arteries.
Branches
Dorsal branches, which give rise to the spinal branches that enter the vertebral canal.
Supply
Dorsal muscles of the back, fascia, ligaments, vertebrae and intervertebral discs.
Variant anatomy
A smaller fifth pair of lumbar arteries may be present, arising from the median sacral artery. The lumbar arteries may arise from a common trunk.
References
- 1. Last's Anatomy. Churchill Livingstone. (2011) ISBN:0702033952. Read it at Google Books - Find it at Amazon
- 2. Gray's Anatomy. Churchill Livingstone. (2011) ISBN:0443066841. Read it at Google Books - Find it at Amazon
Incoming Links
- Erector spinae group
- Intramural blood pool (aorta)
- Aortoiliac occlusive disease
- Psoas major muscle
- Subcostal artery
- Quadratus lumborum muscle
- Median sacral artery
- Posterior abdominal wall
- Intertransversarii muscle group
- Psoas minor muscle
- Endoleak
- Transversus abdominis muscle
- Artery of Adamkiewicz
- Interspinales muscles
- Spinal cord circulation
- Middle adrenal artery
- Sympathetic nervous system
- Transversospinalis muscle group
- IgG4-related arteritis and periarteritis
- Lumbar arteries
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