Type II alveolar cells
A) allow rapid diffusion of gases through their thin membranes.
B) secrete a chemical known as surfactant.
C) are phagocytic.
D) allow rapid diffusion of gases through their thin membranes, secrete a chemical known as surfactant, and are phagocytic.
E) None of the statements are True.

Question

Quizplus · Accepted Answer

Type II alveolar cells are primarily responsible for secreting surfactant, a substance that decreases surface tension within the alveoli, preventing their collapse during exhalation.

Type II Alveolar Cells