A double-walled,closed sac called the pleural sac separates each lung from the thoracic wall and other surrounding structures.

Question

A double-walled,closed sac called the pleural sac separates each lung from the thoracic wall and other surrounding structures.​

Quizplus · Accepted Answer

This statement is true. The pleural sac consists of two layers of membrane, the visceral pleura covering the lungs and the parietal pleura lining the thoracic wall and diaphragm. The space between the two layers is called the pleural cavity, which is filled with a small amount of pleural fluid that lubricates the surfaces and allows for smooth movement during breathing.

A Double-Walled,closed Sac Called the Pleural Sac Separates Each Lung