Nerves: details the nervous anatomy of the mediastinum including notably the route of the phrenic and vagus nerves as well as the anatomy of the sympathetic trunk at the thoracic level. Heart: the external morphology of the heart in the mediastinum and the various chambers of the heart on the anatomical sections are detailed on these diagrams.
The superior mediastinum contains three visceral organs including the esophagus, the trachea and remnants of the thymus. The nerves that run through this area are three and there are also two different nervous plexuses.
Middle Inferior Mediastinum. The middle inferior mediastinum contains a single nerve which is the phrenic nerve, the heart and the pericardium. The vessels present include: the ascending aorta. the pulmonary trunk. the superior vena cava. the pericardiacoophrenic artery.