Pleural Membranes

Question

Pleural membranes
A) line the inside of the lungs.
B) secrete surfactants.
C) secrete mucus and other viscous secretions to minimize friction between the pleural membranes.
D) are serous membranes.

Accepted Answer

Pleural membranes are serous membranes, which means they secrete a lubricating fluid to reduce friction between the layers of the membrane. They do not line the inside of the lungs, nor do they secrete surfactants or mucus.