What is the function of the pleural membranes?

Practice question

Question

What is the function of the pleural membranes?

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They enhance gas exchange. They reduce friction between the lungs and thoracic cavity. Correct They produce surfactant for alveoli. They regulate oxygen concentration in the lungs.

Explanation

The pleural membranes surround the lungs and reduce friction during breathing by secreting pleural fluid.

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