17+ Anatomy Of Pleural Cavity. A small amount of serous pleural fluid is maintained in the pleural cavity to enable lubrication between the membranes, and also to create a pressure gradient. It is thicker than the visceral pleura, and can be subdivided according to the part of the body that it is.
The pericardium is the serous membrane that surrounds the.
The pleural cavity, pleural space, or interpleural space, is the potential space between the pleurae of the pleural sac that surrounds each lung. Within the thoracic cavity, this is known as the pleura. The actual space of the pleural cavity is normally filled with a thin layer of fluid between the pleura of the lungs and the body wall, which are almost in contact. Anterior and inferior regions of pleural cavities are normally not occupied by the lungs.