where is the mediastinum located in the human body
Mediastinum The mediastinum lies within the thorax and is enclosed on the right and left by pleurae. It is surrounded by the chest wall in front, the lungs to the sides and the spine at the back. It extends from the sternum in front to the vertebral column behind, and contains all the organs of the thorax except the lungs. It is continuous with the loose connective tissue of the neck.
Pericardium The pericardium fixes the heart to the mediastinum, gives protection against infection, and provides the lubrication for the heart. It receives its name from Ancient Greek peri (περί; "around") and cardion (κάρδιον; "heart").