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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.
The median arcuate ligament is a ligament formed at the base of the diaphragm where the left and right diaphragmatic crura join near the 12th thoracic vertebra. This fibrous arch forms the anterior aspect of the aortic hiatus , through which the aorta , thoracic duct , and azygos vein pass.
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 aorta is situated on the left, the thoracic duct in the middle, and the azygos vein on the right. [1]: 185 The hemiazygos vein may pass through the aortic hiatus [2] or may pass through the diaphragm independently through its own foramen in the left crus.
The anterior vagal trunk is one of the two divisions (the other being the posterior vagal trunk) into which the vagus nerve splits as it passes through the esophageal hiatus to enter the abdominal cavity. [1] The anterior and posterior vagal trunks represent the inferior continuation of the esophageal nervous plexus inferior to the diaphragm. [2]
Medial ligament might refer to: Medial arcuate ligament, in one's diaphragm; Medial collateral ligament, one of the four major ligaments of the knee; Medial palpebral ligament, near one's nose; Medial pubovesical ligament, from one's bladder to one's pubis bones; Medial talocalcaneal ligament, near one's ankle
The internal arcuate fibers are composed of axons of the gracile nucleus and the cuneate nucleus. The cell bodies of the nuclei lie contralaterally. The medial lemniscus is part of the somatosensory dorsal column–medial lemniscus pathway , which ascends in the spinal cord to the thalamus . [ 1 ]