A membrane that lines a body surface that opens to the exterior of the body is most likely a _____ membrane.
A) synovial
B) serous
C) mucous
D) serous or mucous

Question

Quizplus · Accepted Answer

A membrane that lines a body surface that opens to the exterior of the body is known as a mucous membrane. Mucous membranes are found in various body systems such as the respiratory, digestive, and reproductive systems. They secrete mucus to lubricate and protect the surface of the membrane. Serous membranes, on the other hand, line sealed body cavities and secrete serous fluid to reduce friction between organs. Synovial membranes line the joint cavities and produce synovial fluid to reduce friction between the bones.

A Membrane That Lines a Body Surface That Opens to the Exterior