
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. ==Structure== The lateral arcuate ligament runs from the front of the transverse process of the first lumbar vertebra, and, laterally, t...
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http://en.wikipedia.org/wiki/Lateral_arcuate_ligament

<anatomy> One of Haller's arches; a thickening of the fascia of the quadratus lumborum muscle between the transverse process of the first lumbar vertebra and the twelfth rib on either side that gives attachment to a portion of the diaphragm. ... Synonym: ligamentum arcuatum laterale, arcus lumbocostalis lateralis, lateral lumbocostal arch. .....
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http://www.encyclo.co.uk/local/20973

Type: Term Definitions: 1. a thickening of the fascia of the quadratus lumborum muscle between the transverse process of the first lumbar vertebra and the twelfth rib on either side that gives attachment to a portion of the diaphragm. Synonyms: ligamentum arcuatum laterale, arcus lumbocostalis lateralis, lateral lumbocostal arch  ...
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http://www.medilexicon.com/medicaldictionary.php?t=49593
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