Your lungs are protected by two membranes, called the pleurae. The visceral pleura covers the lungs, and the parietal pleura lines the inside of your rib cage. A small amount of space between the two ...
The pleura is a two-layered membrane that covers the lung. Between the layers is a small amount of lubricating fluid, known as pleural fluid, which helps cushion the lung and reduce friction between ...
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