The line of defense that Cilia and mucous can be categorized with is First line of defense.
- The first line of defence can be regarded as innate immune system.
- Level one of this system usually encompass some physical barriers such as our skin as well as the mucosal lining in our respiratory tract.
- The tears as well as our sweat and mucous that is been manufactured through our skin as well as mucosal lining can as well be regarded as the part of the physical barrier.
Therefore, First line of defense serves as innate immune system
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