Mediastinum

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this is Dr.haider's lec, the one we took today , he left it on the desktop and said you can take it =D and btw for the pics he said check any anatomy book even the ones in the library

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Mediastinum

  1. 1. Mediastinum
  2. 2. <ul><li>The median portion of the thoracic cavity (interpleural) </li></ul><ul><li>Limited by: </li></ul><ul><ul><li>Thoracic inlet superiorly </li></ul></ul><ul><ul><li>Diaphragm inferiorly </li></ul></ul><ul><ul><li>Sternum anteriorly </li></ul></ul><ul><ul><li>12 Thoracic vertebrae posteriorly </li></ul></ul>Mediastinum
  3. 3. Sternal Angle Thoracic inlet Thoracic oulet
  4. 4. Mediastinum <ul><li>It is divided into: </li></ul><ul><li>1. Superior mediastinum: lies between the first rib and the sternal angle. </li></ul><ul><li>2. Inferior mediastinum: lies between the sternal angle and the diaphragm. </li></ul>
  5. 5. Mediastinum <ul><li>Inferior mediastinum: is subdivided into: </li></ul><ul><ul><li>Anterior mediastinum </li></ul></ul><ul><ul><li>Middle mediastinum </li></ul></ul><ul><ul><li>Posterior mediastinum </li></ul></ul>
  6. 6. Superior Mediastinum Posterior Mediastinum Anterior Mediastinum Middle Mediastinum Sternal Angle L4 L5
  7. 7. Superior Mediastinum <ul><li>It contains: </li></ul><ul><li>Blood vessels (large veins & arteries) </li></ul><ul><li>Thoracic duct </li></ul><ul><li>Trachea </li></ul><ul><li>Esophagus </li></ul><ul><li>Thymus </li></ul><ul><li>Nerves </li></ul>
  8. 8. Superior Mediastinum <ul><li>Blood Vessels </li></ul><ul><li>Superior vena cava </li></ul><ul><li>Brachiocephalic veins </li></ul><ul><li>Pulmonary trunk </li></ul><ul><li>Arch of Aorta </li></ul>
  9. 9. Superior Mediastinum <ul><li>Nerves </li></ul><ul><li>Vagus nerve </li></ul><ul><li>Left Recurrent Laryngeal nerve. </li></ul><ul><li>Phrenic nerve. </li></ul>
  10. 10. Inferior Mediastinum <ul><li>Anterior mediastinum: contains: </li></ul><ul><ul><li>Thymus gland </li></ul></ul><ul><ul><li>Lymph Nodes </li></ul></ul><ul><ul><li>Fat. </li></ul></ul>
  11. 11. Inferior Mediastinum <ul><li>Middle mediastinum: contains: </li></ul><ul><li>Heart </li></ul><ul><li>Pericardium </li></ul><ul><li>Phrenic nerve </li></ul><ul><li>Main bronchi </li></ul>
  12. 12. Inferior Mediastinum <ul><li>Posterior mediastinum: contains: </li></ul><ul><li>Esophagus </li></ul><ul><li>Thoracic aorta </li></ul><ul><li>Azygus vein </li></ul><ul><li>Thoracic duct </li></ul><ul><li>Vagus nerve </li></ul><ul><li>Sympathetic trunk </li></ul>
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