What is the function of the very small amount of pleural fluid that is found in the pleural space?
A) Composes part of anatomic shunt.
B) Liquid barrier for pathogens.
C) Part of pulmonary blood flow.
D) Reduces friction.

Question

Quizplus · Accepted Answer

The small volume of pleural fluid is spread out over the entire surface of both lungs and functions as a lubricant to reduce friction as the lungs move within the thorax and as an airtight seal that adheres together the two pleural membranes.

What Is the Function of the Very Small Amount of Pleural