Each lung is surrounded by pleura, sac-like structures which prevent the lungs over-expanding and reduce friction between lungs during their expansion. They contain a small amount of pleural effusion (fluid) which keeps the lungs moist acting as a lubricant. Each pleura is made of two layers, parietal and visceral. The visceral membrane is continuous with the lungs and the parietal is on top of that (with the pleural fluid/effusion between).
Between the two lungs is a structure called the mediastinum, this is another sac-like structure which contains the pericardium (heart-sac), the heart, the major vessels leaving the heart, some of the oesophagus and trachea also enter it.
mediastinum
Mediastinum
Mediastinum
the small potential space between the parietal and visceral layers of the pleura.
The pleural cavity is the space between the pleura surrounding the lungs. The pleura is defined as the double folded membrane surrounding the lungs.
The space between the 2 lungs is called the Mediastinum where the heart is located
The mediastinum.
plueral space
Mediastinoscopy
mediastinummediastinumThe mediastinum is the space between the lungs.
Pleural cavity
this is the thoracic cavity, the space between the neck and the abdomen, this contains the lungs, heart & the main artery called the aorta, the lungs are covered by a membrane called the pleura which holds the lungs in situ and is the area affected by pleurisy, if air or gasses are allowed to permeate this area outside the lungs the vacuum that enables breathing is compromised and a collapsed lung can occur.
The potential space between the lining of the chest cavity (pleura) and the lining that covers the lungs (also called the pleura). These linings are made of serous membranes that secrete serous fluid for lubrication, so there is no friction during breathing when the lungs expand and contract against the chest wall. There is a vacuum maintained in this space that keeps the lungs inflated.
Mediastinum