Skip to Content
Medical Term:

lateral arcuate ligament


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(s): ligamentum arcuatum lateraleTA, arcus lumbocostalis lateralis, lateral lumbocostal arch

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.