Define respiratory defense system. A)The respiratory defense system is the resident macrophages that live in the respiratory passageways. B)The respiratory defense system is a series of filtration mechanisms that prevent airway contamination. C)The respiratory defense system is the lymph fluid that lines the internal respiratory passageways to prevent invasion by pathogens. D)The respiratory defense system is the collection of lymph nodes throughout the lungs that filter the air as it is inhaled. E)The respiratory defense system is the collection of T cells and B cells that reside in the respiratory passageways.

Question

Quizplus · Accepted Answer

The respiratory defense system is a series of filtration mechanisms that prevent airway contamination. These include the physical barrier of the nasal hairs, the mucociliary clearance system that traps and removes debris, and the alveolar macrophages that engulf and destroy pathogens. Together, these mechanisms defend the respiratory system against infection and maintain its function. The other options listed are not accurate definitions of the respiratory defense system.

Define respiratory Defense System