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 ductsuperior 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