Whatever the situation, macrophages are elevated in the lungs of smokers and those patients with COPD, where they accumulate in the alveoli, bronchioli, and small airways.

• 无论什么情形，巨噬细胞在吸烟和COPD患者肺部都会增高，并会在肺泡，细支气管及小气道内积聚。