What is the primary function of any serous membrane?
A) It covers the outer surface of the body.
B) It lines joint cavities and produces fluid within a joint.
C) It lines cavities that communicate with the exterior, including the digestive, respiratory, reproductive, and urinary tracts.
D) It attaches muscles to the skeleton.
E) It minimizes friction between the opposing surfaces when an organ moves or changes shape.

Question

Quizplus · Accepted Answer

The primary function of serous membranes is to minimize friction between opposing surfaces when an organ moves or changes shape. This is achieved through the secretion of a serous fluid that acts as a lubricant. Serous membranes can be found lining the walls of the body cavities and organs, such as the pleura in the lungs, the peritoneum in the abdominal cavity, and the pericardium in the heart.

What Is the Primary Function of Any Serous Membrane