Body Location or Region
mediastinum
me·di·as·ti·num [ mee-dee-a-stahy-nuhm ]
Subclass of:
Thoracic cavity
Definitions related to mediastinum:
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A membrane in the midline of the THORAX of mammals. It separates the lungs between the STERNUM in front and the VERTEBRAL COLUMN behind. It also surrounds the HEART, TRACHEA, ESOPHAGUS, THYMUS, and LYMPH NODES.NLM Medical Subject HeadingsU.S. National Library of Medicine, 2021
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An anatomic site along the midline and under the sternum that contains the heart and pericardium, the bases of the great vessels, the trachea and bronchi, esophagus, thymus, lymph nodes, thoracic duct, phrenic and vagus nerves, and other structures and tissues.NCI ThesaurusU.S. National Cancer Institute, 2021
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Mass of tissues and organs separating the two pleural sacs, between the sternum anteriorly and the vertebral column posteriorly and from the thoracic inlet superiorly to the diaphragm inferiorly; contains the heart, pericardium, the bases of the great vessels, the trachea and bronchi, esophagus, thymus, lymph nodes, thoracic duct, and the phrenic and vagus nerves.CRISP ThesaurusNational Institutes of Health, 2006
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Subdivsion of thoracic compartment which has as its parts the superior mediastinum and inferior mediastinum.Foundational Model of AnatomyUniversity of Washington, 2017
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The area between the lungs. The organs in this area include the heart and its large blood vessels, the trachea, the esophagus, the thymus, and lymph nodes but not the lungs.NCI Dictionary of Cancer TermsU.S. National Cancer Institute, 2021
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The central region of the thoracic cavity of mammals containing a group of organs surrounded by loose connective tissue, which separates the two pleural sacs.CDISC TerminologyClinical Data Interchange Standards Consortium (CDISC), 2021
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Mediastinum, the anatomic region located between the lungs that contains all the principal tissues and organs of the chest except the lungs. It extends from the sternum, or breastbone, back to the vertebral column and is bounded laterally by the pericardium, the membrane enclosing the heart, and...Encyclopedia Britannica, Inc., 2020
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