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Middle and Posterior Mediastina

View Left side.

The Middle Mediastinum (Fig. 968) is the broadest part of the interpleural space. It contains the heart enclosed in the pericardium, the ascending aorta, the lower half of the superior vena cava with the azygos vein opening into it, the bifurcation of the trachea and the two bronchi, the pulmonary artery dividing into its two branches, the right and left pulmonary veins, the phrenic nerves, and some bronchial lymph glands.


The Posterior Mediastinum (Figs. 968, 969) is an irregular triangular space running parallel with the vertebral column; it is bounded in front by the pericardium above, and by the posterior surface of the diaphragm below, behind by the vertebral column from the lower border of the fourth to the twelfth thoracic vertebra, and on either side by the mediastinal pleura. It contains the thoracic part of the descending aorta, the azygos and the two hemiazygos veins, the vagus and splanchnic nerves, the esophagus, the thoracic duct, and some lymph glands.



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Reference

Gray H. Anatomy of the human body. (1918) Philadelphia: Lea & Febiger.


Cite this page: Hill, M.A. (2024, June 13) Embryology Gray0969.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Gray0969.jpg

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current03:38, 17 August 2012Thumbnail for version as of 03:38, 17 August 2012621 × 900 (241 KB)Z8600021 (talk | contribs)==Middle and Posterior Mediastina== View Left side. The Middle Mediastinum (Fig. 968) is the broadest part of the interpleural space. It contains the heart enclosed in the pericardium, the ascending aorta, the lower half of the superior vena cava with t