The tiny fluid-filled space between the visceral and parietal pleura; if air should enter this normally non-communicating space, a pneumothorax will result.
the space between the lungs and the inside of the rib cage.
The tiny area between the two layers of the pleura (the thin covering that protects and cushions the lungs). The pleural space is normally filled with a small amount of fluid. See the entire definition of Pleural space
the fluid-filled "space" between the two pleural walls (visceral and parietal pleura).
The potential area between the visceral and parietal layers of the pleurae.
Space (10 µm) between parietal and visceral pleura in chest; contains pleural fluid acting as lubricant which enables the lungs to slide against the chest wall. Pressure is negative and changes with the respiratory cycle. See intrapleural pressure, respiratory pump.