Alveolar macrophages patrol the alveoli to engulf and remove bacteria, carbon particles, and other debris.

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Alveolar macrophages are specialized immune cells that reside in the alveoli of the lungs and play a critical role in defending against respiratory pathogens and removing harmful debris. They constantly survey the lung environment and act as scavengers, engulfing and digesting bacteria, viruses, dust, and other foreign particles that enter the airways. This cleaning ability helps to maintain the health of the lungs and prevent infection and inflammation.

Alveolar Macrophages Patrol the Alveoli to Engulf and Remove Bacteria