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Single Choice Easy

Q How many layers does the pleura have?

ID: #10003 Respiratory system 166 views
Question Info
#10003Q ID
EasyDifficulty
Respiratory systemTopic
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  • A Not layered ✔ ✖
  • B Single layer ✔ ✖
  • C Double layer ✔ ✖
  • D Triple layer ✔ ✖
Correct Answer

Explanation

The pleura is a membrane that surrounds the lungs and lines the thoracic cavity. It is a double-layered membrane, consisting of an outer parietal layer and an inner visceral layer. The parietal pleura lines the inner surface of the thoracic cavity, while the visceral pleura covers the outer surface of the lungs. The two layers are separated by a thin layer of fluid called pleural fluid, which reduces friction and allows the lungs to expand and contract smoothly during breathing. Therefore, option C is the correct answer.

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