Which Statement About Skin and Mucous Membranes is NOT Correct

Question

Which statement about skin and mucous membranes is NOT correct?
A) They are the first line of innate immunity.
B) They are the first line of adaptive immunity.
C) They act as physical barriers to infection.
D) They contain antimicrobial secretions.
E) They separate us from our environment.

Accepted Answer

Skin and mucous membranes are considered the first line of defense in innate immunity, but not in adaptive immunity. Adaptive immunity requires the activation of specific immune cells and the production of antibodies against a particular pathogen.