Which of the following actions is part of the immune response in the respiratory system?
A) Coughing and sneezing
B) Mucociliary blanket
C) Alveolar macrophages
D) All of the above
Answer: D
Which of the following actions is part of the immune response in the respiratory system?
A) Coughing and sneezing
B) Mucociliary blanket
C) Alveolar macrophages
D) All of the above
Answer: D