Question

question 35
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 (not exposed to external environment).
• Mucosa lines body cavities open to the exterior (digestive, respiratory, urinary, reproductive tracts).
• Cutaneous is the skin (not a membrane lining body cavities).
• Connective is not an epithelial membrane.

Answer:

B. mucosa