| Lateral arcuate ligament | |
|---|---|
| The diaphragm. Under surface. (Lat. arcuate ligament visible at bottom left.) | |
| Latin | ligamentum arcuatum laterale |
| Gray's | subject #117 405 |
The lateral arcuate ligament (also lateral lumbocostal arch) is a ligament under the diaphragm that arches across the upper part of the quadratus lumborum. It is traversed by the subcostal nerve, artery and vein.
The lateral arcuate ligament runs from the front of the transverse process of the first lumbar vertebra, and, laterally, to the tip and lower margin of the twelfth rib. It forms an arch over the quadratus lumborum muscle.
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.
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