If pathogens evade the non-specific immune system of the upper respiratory tract and enter the alveoli,_______ can protect the body from infection.

Question

Quizplus · Accepted Answer

Macrophages can protect the body from infection in the alveoli by engulfing and destroying invading pathogens. Histiocytes are a type of macrophage that resides in the connective tissue and would not be as effective in the lungs. NK cells are part of the non-specific immune system and function primarily in recognizing and destroying viruses and tumor cells. Goblet cells are specialized cells that produce mucus and do not play a role in immune defense.

If Pathogens Evade the Non-Specific Immune System of the Upper