Lumbar branch of iliolumbar artery
The lumbar branch of the iliolumbar artery (ramus lumbalis) supplies the psoas major and quadratus lumborum, anastomoses with the last lumbar artery, and sends a small spinal branch through the intervertebral foramen between the last lumbar vertebra and the sacrum, into the vertebral canal to supply the cauda equina.
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| Lumbar branch of iliolumbar artery | |
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 The veins of the right half of the male pelvis. (Iliolumbar artery not labeled, but Iliolumbar vein visible at center right.) | |
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| Latin | ramus lumbalis arteriae iliolumbalis |
| TA | A12.2.15.003 |
| FMA | 18849 |
| Anatomical terminology | |
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