MEDICINE
RESPIRATORY MEDICINE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Expand during breathing
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Trap dust and other particles
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Keep the alveoli distended
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Cough
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Detailed explanation-1: -The mediastinal and diaphragmatic pleurae cover the mediastinum and diaphragm, respectively. During quiet respiration, the visceral and parietal pleura separate in regions that are not occupied by the lungs, resulting in pleural recesses. These allow for expansion during forced respiration.
Detailed explanation-2: -The pleura includes two thin layers of tissue that protect and cushion the lungs. The inner layer (visceral pleura) wraps around the lungs and is stuck so tightly to the lungs that it cannot be peeled off. The outer layer (parietal pleura) lines the inside of the chest wall.
Detailed explanation-3: -It contains a thin film of serous fluid that is produced by the pleura. The fluid acts as a lubricant to reduce friction as the two layers slide against each other, and it helps to hold the two layers together as the lungs inflate and deflate.