Pleural Effusion

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Anatomy


The Pleural Space

A shiny, thin, transparent membrane called the serous coat, or pleura, covers each lung. The inner (visceral) layer of the pleura is attached to the lungs and the outer (parietal) layer is attached to the chest wall. Both layers are covered with mesothelial cells, which secrete a small amount of fluid (i.e., less than 2 tablespoons) that provides lubrication between the chest wall and the lung. Both layers are held in place by a film of pleural fluid, like two g...Read the full article