Question

question 24
which of the following epithelial membranes line the body cavities exposed to the external environment?
a serous
b mucosa
c cutaneous
d connective

Explanation:

• Serous membranes line closed ventral body cavities and are not exposed to the external environment.
• Mucous membranes (mucosa) line body cavities that open to the exterior (e.g., digestive, respiratory, urinary, and reproductive tracts).
• Cutaneous membranes are the skin, which is a covering rather than lining a body cavity exposed to the external environment in the sense of a cavity.
• Connective tissue membranes are not epithelial membranes.

Answer:

B. mucosa