The esophagus has been divided at the lower border of the second thoracic vertebra and again just above the diaphragm. The intervening portion of the esophagus has been removed to expose the trachea and pericardium. The latter has been opened to the margins of the oblique sinus.
Intervertebral disc Th. II-III
Esophagus (cut off)
Trachea
Upper pointer: Left subclavian artery Lower pointer: Left common carotid artery
Recurrent laryngeal nerve
Aortic arch (cut off at junction with descending aorta)
Left pulmonary artery
Upper pointer: Vagus nerve left (cut off) Lower pointer: Left main bronchus
Lung left
Left inferior pulmonary vein
Left atrium (exposed by removing pericardium from posterior wall of oblique sinus)