Median arcuate ligament

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Median arcuate ligament

The diaphragm. Under surface.
Latin	ligamentum arcuatum medianum
Dorlands/Elsevier	l_09/12491652

The median arcuate ligament is a ligament under the diaphragm that connects the right and left crura of diaphragm.

1 Structure
2 Clinical significance
3 See also
4 References
5 External links

[edit] Structure

The median arcuate ligament is formed by the right and left crura of the diaphragm. The crura connect to form an arch, behind which is the aortic hiatus.

[edit] Clinical significance

Median arcuate ligament syndrome occurs when this orifice narrows the exit of the celiac artery^[1] and causes pain and weight loss when eating. It is associated with increased pain during inspiration and lessens with expiration. It is often cut surgically to release the artery and patients usually improve. It is debated if it is the actual release of the artery or the consequencial cutting of the nerves of the celiac plexus that relieves the pain.^{[citation needed]}

[edit] See also

[edit] References

^ Delis KT, Gloviczki P, Altuwaijri M, McKusick MA (2007). "Median arcuate ligament syndrome: open celiac artery reconstruction and ligament division after endovascular failure". J. Vasc. Surg. 46 (4): 799–802. doi:10.1016/j.jvs.2007.05.049. PMID 17903658.

[edit] External links

Median+arcuate+ligament at eMedicine Dictionary
SUNY Figs 40:04-08 - "The abdominal surface of the diaphragm."
1738145849 at GPnotebook
Norman/Georgetown posteriorabdomen (posteriorabdmus&nerves)

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.

v • d • e General anatomy of torso

Thorax/ Thoracic cavity	Mediastinum (Superior, Anterior, Middle, Posterior) • Superior thoracic aperture • Inferior thoracic aperture • Triangle of auscultation • Intercostal space • Thoracic plane • Thoracic wall/Thoracic cage - fascia (Pectoral fascia, Clavipectoral fascia, Thoracolumbar fascia) • Chest • Midsternal line

Thoracic diaphragm	openings (Caval opening, Esophageal hiatus, Aortic hiatus, Foramina of Morgagni) • Central tendon • Crus of diaphragm • arcuate ligaments (Lateral, Medial, Median)

Abdomen/ Abdominal cavity	Retroperitoneum • Paracolic gutters • Hepatobiliary triangle anterior abdominal wall (Arcuate line, Linea alba, Tendinous intersection, Linea semilunaris, McBurney's point, Traube's space, Inguinal triangle) • Inguinal canal (Deep inguinal ring, Superficial inguinal ring, Intercrural fibers, Crura of superficial inguinal ring) • Lumbar triangle • regions (Epigastrium, Hypochondrium, Umbilical region, Latus, Hypogastrium, Inguinal region) • planes (Transpyloric plane, Intertubercular plane, Midclavicular line) fascia (Fascia of Camper, Fascia of Scarpa, Transversalis fascia, Renal fascia, Rectus sheath)

Pelvis/ Pelvic cavity	Pelvic floor • Retropubic space fascia (Pelvic fascia, Superior fascia of diaphragm of pelvis, Inferior fascia of diaphragm of pelvis, Fascia of the Obturator internus, Tendinous arch, Iliac fascia, Iliopectineal fascia)

Perineum	Anal triangle (Ischioanal fossa, Pudendal canal, Anococcygeal raphe) Urogenital triangle (Superficial perineal pouch, Deep perineal pouch) Perineal body fascia (Dartos/fascia of perineum/superficial perineal fascia/Fascia of Colles, Perineal membrane/"Inferior fascia of UGD", "Superior fascia of UGD")