Potential space

In anatomy, a potential space is a space that can occur between two adjacent structures that are normally pressed together. The pleural space, between the visceral and parietal pleura of the lung, is usually a potential space. Whilst it only contains a small amount of fluid it can sometimes have an accumulation of fluid or the presence of air that makes it an actual space. In anatomy, a potential space is a space that can occur between two adjacent structures that are normally pressed together. The pleural space, between the visceral and parietal pleura of the lung, is usually a potential space. Whilst it only contains a small amount of fluid it can sometimes have an accumulation of fluid or the presence of air that makes it an actual space.