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Multiple Choice
What type of membrane lines body passageways that eventually open to the external environment?
A
Mucous membrane
B
Synovial membrane
C
Serous membrane
D
Cutaneous membrane
Verified step by step guidance
1
Understand the function of each type of membrane: Mucous membranes line body cavities and passageways that open to the external environment, such as the respiratory, digestive, and urogenital tracts.
Recognize that synovial membranes are found in joint cavities and are not exposed to the external environment.
Identify that serous membranes line closed internal body cavities and do not open to the external environment.
Note that the cutaneous membrane is essentially the skin, which covers the body surface but does not line internal passageways.
Conclude that the mucous membrane is the type that lines body passageways opening to the external environment, as it secretes mucus to protect and lubricate these areas.