Why does the surface of the lungs need to be covered with pleura?
A) to allow the exchange of oxygen within the alveoli
B) to allow the exchange of carbon dioxide within the alveoli
C) to produce the muscular contractions that expand the lungs
D) to enable the lungs to slide past the internal chest wall and diaphragm
E) to prevent the alveoli from collapsing due to pressure

Question

Quizplus · Accepted Answer

The pleura allows the lungs to slide past the internal chest wall and diaphragm during breathing movements, which is essential for proper ventilation. The pleura also helps to maintain the pressure of the lungs and prevent lung collapses. However, it is not directly involved in gas exchange or muscular contractions.

Why Does the Surface of the Lungs Need to Be