| lumbocostal | 1. Relating to the lumbar and the hypochondriac regions. 2. Relating to the lumbar vertebrae and the ribs; denoting a ligament connecting the first lumbar vertebra with the neck of the twelfth rib. Origin: L. Lumbus, loin, + costa, rib (05 Mar 2000) |
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| lumbocostal ligament | <anatomy> A strong band that unites the twelfth rib with the tips of the transverse processes of the first and second lumbar vertebrae. Synonym: ligamentum lumbocostale. (05 Mar 2000) |
| medial lumbocostal arch | <anatomy> One of Haller's arches; a tendinous thickening of the psoas fascia that extends from the body of the first lumbar vertebra to its transverse process on either side. A portion of the diaphragm arises from it. Synonym: ligamentum arcuatum mediale, arcus lumbocostalis medialis, medial lumbocostal arch. (05 Mar 2000) |
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| lateral lumbocostal arch | <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. (05 Mar 2000) |