The parietal pleura glides smoothly over the visceral pleura because the pleural cavity normally contains a small amount of

Question

Quizplus · Accepted Answer

The parietal pleura and visceral pleura are separated by a small space known as the pleural cavity. This cavity normally contains a small amount of lubricating pleural fluid which allows the two layers to glide smoothly over each other during breathing movements. The presence of pus, blood, or sputum in the pleural cavity indicates an underlying disease or pathology.

The Parietal Pleura Glides Smoothly Over the Visceral Pleura Because