Question

which of the following is a tissue membrane that lines the hollow cavities and passageways of the body that are open to the external environment?
a.) connective tissue membrane
b.) mucous membrane
c.) synovial membrane
d.) cutaneous membrane

Explanation:

Mucous membranes line body cavities and passageways open to the external environment. They secrete mucus for protection. Connective tissue membranes (e.g., synovial) have different functions (like joint lubrication). Cutaneous membrane is skin, not lining internal open cavities.

Answer:

B. Mucous Membrane