What change in the alveoli would cause an increase in alveolar surface tension,alveolar collapse,decreased lung expansion and increased work of breathing?
A) Decreased alveolar macrophage production
B) Increased compliance
C) Decreased surfactant production
D) Increased stimulation by peripheral chemoreceptors

Question

Quizplus · Accepted Answer

Surfactant is a substance secreted in the alveoli that reduces surface tension and prevents alveolar collapse during expiration. If there is a decrease in surfactant production, the surface tension increases, leading to alveolar collapse, decreased lung expansion, and increased work of breathing. Therefore, decreased surfactant production is the best choice that fits the given scenario.

What Change in the Alveoli Would Cause an Increase in Alveolar