Lateral arcuate ligament

From Wikipedia, the free encyclopedia
  (Redirected from Lateral lumbocostal arch)
Jump to: navigation, search
Lateral arcuate ligament
The diaphragm. Under surface. (Lat. arcuate ligament visible at bottom left.)
Latin ligamentum arcuatum laterale
Gray's p.405
TA A04.4.02.007
FMA 58283
Anatomical terminology

The lateral arcuate ligament (also lateral lumbocostal arch and external arcuate ligament) is a ligament under the diaphragm that arches across the upper part of the quadratus lumborum muscle. 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.

See also[edit]


This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

External links[edit]