Why is pulmonary surfactant such an important biologic substance?
A) It clears out cellular debris.
B) It is an alveolar macrophage.
C) It promotes lung contraction aiding exhalation.
D) It promotes lung stability.

Question

Quizplus · Accepted Answer

Surfactant functions to reduce the surface tension of the alveolus, which results in shedding water from the alveolar surface; helps to prevent alveolar surface tension-driven collapse; improves lung compliance; and reduces the work of breathing.

Why Is Pulmonary Surfactant Such an Important Biologic Substance