Question

which of the following membranes lines passageways and chambers, such as the digestive and respiratory tracts, that communicate with the bodys exterior?
cutaneous membrane
serous membrane
mucous membrane
synovial membrane
i dont know yet

Explanation:

To solve this, we analyze each option:

• Cutaneous membrane: Covers the body surface (skin), not internal passageways.
• Serous membrane: Lines body cavities closed to the exterior (e.g., pleural, peritoneal), not communicating with exterior.
• Mucous membrane (mucosa): Lines passageways open to the exterior (digestive, respiratory, etc.), secreting mucus.
• Synovial membrane: Lines joint cavities, not related to digestive/respiratory tracts.

So the correct answer is the Mucous membrane.

Answer:

C. Mucous membrane