Question

Which of the following is the major type of cell in the alveoli that 'crawl' along alveolar surfaces consuming bacteria, dust, and other debris?

A. type I alveolar cells
B. type II alveolar cells
C. alveolar macrophages
D. lymphocytes

Answer 1

Alveolar macrophages are the major type of cell in the alveoli that 'crawl' along alveolar surfaces consuming bacteria, dust, and other debris.

Step-by-step explanation:

The major type of cell in the alveoli that 'crawl' along alveolar surfaces consuming bacteria, dust, and other debris is alveolar macrophages.

Alveolar macrophages are phagocytic cells of the immune system that remove debris and pathogens that have reached the alveoli. They play a crucial role in maintaining the cleanliness and integrity of the respiratory system.