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posterior mediastinum |
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posterior mediastinum, the irregularly shaped lower part of the mediastinum parallel with the vertebral column. It is bounded ventrally by the pericardium, inferiorly by the diaphragm, dorsally by the vertebral column from the fourth to the twelfth thoracic vertebra, and laterally by the mediastinal pleurae. It contains the bifurcation of the trachea, two primary bronchi, the esophagus, the thoracic duct, many large lymph nodes, and various vessels, such as the thoracic part of the aortic arch. Compare anterior mediastinum, middle mediastinum, superior mediastinum. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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posterior liver posterior lobe of hypophysis posterior longitudinal ligament posterior median fissure posterior median line posterior median sulcus posterior mediastinal node posterior mediastinum posterior nares posterior nasal spine posterior neuropore posterior occlusion posterior palatal seal area posterior palatine foramen posterior parietal artery |
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