Mediastinum
Mediastinum
Outline >superior mediastinum >inferior mediastinum 1st rib Mediastinum Sternal Superior ---anterior mediastinum Inferior: angle Anterior T4 ---middle mediastinum 50 Middle Posterior ---posterior mediastinum Diaphragm Lateral view FIGURE 1.23. Subdivisions of mediastinum
Outline ➢superior mediastinum ➢inferior mediastinum ---anterior mediastinum ---middle mediastinum ---posterior mediastinum
Mediastinum 1st rib Mediastinum ☐Superior Sternal angle Inferior: Anterior ▣Middle ▣Posterior superior mediastinum inferior mediastinum Diaphragm ---anterior mediastinum Lateral view ---middle mediastinum FIGURE 1.23. Subdivisions of mediastinum. ---posterior mediastinum
Mediastinum ◼superior mediastinum ◼inferior mediastinum ---anterior mediastinum ---middle mediastinum ---posterior mediastinum
superior mediastinum Contains: ◆The thymas Great vessels related to the heart and pericardium: Right and left brachiocephalic veins Superior vena cava Aorta and its three branches---brachiocephalic trunk ---left common carotid artery ---left subclavian artery Right and left phrenic and vagus nerves Left recurrent laryngeal nerves ◆Trachea ◆Esophagus ◆Thoracic duct
superior mediastinum Contains: ◆The thymas ◆Great vessels related to the heart and pericardium: • Right and left brachiocephalic veins • Superior vena cava • Aorta and its three branches---brachiocephalic trunk ---left common carotid artery ---left subclavian artery ◆ Right and left phrenic and vagus nerves ◆ Left recurrent laryngeal nerves ◆ Trachea ◆ Esophagus ◆ Thoracic duct
1st layer ◆Thymus ◆superior vena cava brachiocephalic veins Vagus ner Phrenic nerve Left Subclavian vein brachiocephalic Right vein brachiocephalic Vagus nerve vein crossing aortic arch Superior vena cava Phrenic nerves
◆Thymus ◆ superior vena cava ◆ brachiocephalic veins 1st layer