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The median arcuate ligament is formed by the right and left crura of the diaphragm. [1] The crura connect to form an arch, behind which is the aortic hiatus, through which pass the aorta, the azygos vein, and the thoracic duct.
Median arcuate ligament syndrome results from compression of the celiac artery by the median arcuate ligament. The median arcuate ligament is a fibrous arch formed by the left and right diaphragmatic crura, visible here on the underside of the diaphragm. Specialty: Gastroenterology, Vascular Surgery: Symptoms: Epigastric pain, anorexia, Weight loss
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.
The medial tendinous margins of the crura pass anteriorly and medialward, and meet in the middle line to form an arch across the front of the aorta known as the median arcuate ligament; this arch is often poorly defined. The area behind this arch is known as the aortic hiatus.
The lateral arcuate ligament also arises from fascia thickening that covers the quadratus lumborum muscle. The median arcuate ligament arises from the fibrous parts of right and left crura where descending thoracic aorta passes behind it. No diaphragmatic muscle arises from the median arcuate ligament. [8]
It is located at the level of the inferior border of the twelfth thoracic vertebra (T12), [2] posterior to the median arcuate ligament [2] [1]: 185 between the two crura of the diaphragm. [ 2 ] Structure
Human anatomy is the scientific study of the morphology of the adult human. It is subdivided into gross anatomy and microscopic anatomy . Gross anatomy (also called topographical anatomy, regional anatomy, or anthropotomy) is the study of anatomical structures that can be seen by unaided vision.
The arcuate ligament may refer to: Inferior pubic ligament (arcuate ligament of the pubis). Arcuate popliteal ligament. Arcuate ligaments of the diaphragm: Median arcuate ligament; Medial arcuate ligament; Lateral arcuate ligament