A Major Function of Serous Membranes is to Decrease Friction

Question

A major function of serous membranes is to decrease friction.

Accepted Answer

Serous membranes are thin layers of tissues that line the internal cavities of the body such as the pleural and peritoneal cavities. One of their main functions is to secrete a lubricating fluid that decreases friction between organs and body walls as they move against each other, thus reducing wear and tear on these tissues.