Q: What is the membrane that encloses the lungs called?  

Answer: A

The lungs are enclosed in a double-layered membrane called the pleural membrane. The outer layer, known as the parietal pleura, lines the inner surface of the chest wall, while the inner layer, the visceral pleura, covers the lungs' surface. The space between the two layers is called the pleural cavity and is filled with pleural fluid, which acts as a lubricant, allowing the lungs to move smoothly during breathing. The pleural membrane also helps to protect the lungs from infection and trauma.

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