Medial arcuate ligament

Medial arcuate ligament
Medial arcuate ligament
Gray391.png
The diaphragm. Under surface. (Med. arcuate ligament visible at bottom center left.)
Latin ligamentum arcuatum mediale
Gray's subject #117 404

The medial arcuate ligament (also medial lumbocostal arch) is a tendinous fascia that arches over the psoas major muscle as it passes through the diaphragm.

Structure

The medial arcuate ligament is an arch in the fascia covering the upper part of the psoas major. It is attached to the side of the body of the first or second lumbar vertebra; laterally, it is fixed to the front of the transverse process of the first and, sometimes also, to that of the second lumbar vertebra.

It lies between the lateral arcuate ligament and the midline median arcuate ligament.

The sympathetic chain enters the abdomen by passing deep to this ligament.

See also

External links

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 As such, some of the information contained within it may be outdated.

v · d · eThoracic diaphragm (TA A04.4.02, GA 4.404)
General

Central tendon · Crus of diaphragm

arcuate ligaments (Lateral, Medial, Median)
Openings

major: Caval opening · Esophageal hiatus · Aortic hiatus

minor: Sternocostal triangle · Lumbocostal triangle

M: MUS, DF+DRCT

anat (h/n, u, t/d, a/p, l)/phys/devp/hist

noco(m, s, c)/cong(d)/tumr, sysi/epon, injr

proc, drug (M1A/3)

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Look at other dictionaries:

  • medial arcuate ligament — n an arched band of fascia that covers the upper part of the psoas major muscle, extends from the body of the first or second lumbar vertebra to the transverse process of the first and sometimes also the second lumbar vertebra, and provides… …   Medical dictionary

  • arcuate ligament — see LATERAL ARCUATE LIGAMENT, MEDIAL ARCUATE LIGAMENT, MEDIAN ARCUATE LIGAMENT …   Medical dictionary

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  • Arcuate ligament — The term arcuate ligament refers to an arc shaped ligament. Specifically, it can refer to a variety of ligaments in the human body: * Arcuate ligaments of the diaphragm ** Median arcuate ligament ** Medial arcuate ligament ** Lateral arcuate… …   Wikipedia

  • Median arcuate ligament — The diaphragm. Under surface. Latin ligamentum arcuatum medianum The median arcuate ligament is a ligament under the diaphragm that connects the right and left crura of diaphragm …   Wikipedia

  • Lateral arcuate ligament — Infobox Anatomy Name = PAGENAME Latin = ligamentum arcuatum laterale GraySubject = 117 GrayPage = 405 Caption = The diaphragm. Under surface. (Lat. arcuate ligament visible at bottom left.) Caption2 = System = Precursor = MeshName = MeshNumber =… …   Wikipedia

  • lateral arcuate ligament — n a fascial band that is formed by part of the quadratus lumborum muscle, extends from the tip of the transverse process of the first lumbar vertebra to the twelfth rib, and provides attachment for part of the diaphragm compare MEDIAL ARCUATE… …   Medical dictionary

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