| Artery: 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.) | |
| Latin | ramus lumbalis arteriae iliolumbalis |
| Gray's | subject #155 621 |
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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