Which of the following forces does not contribute to keeping the alveoli open?
A)alveolar surface tension
B)transmural pressure gradient
C)pulmonary surfactant
D)Movement of air between alveoli through pores of Kohn
E)None of the above contribute to keeping the alveoli open.

Question

Quizplus · Accepted Answer

Alveolar surface tension actually acts to collapse the alveoli, not keep them open. Pulmonary surfactant reduces this surface tension, helping to keep alveoli open. The transmural pressure gradient and movement of air through pores of Kohn also help maintain alveolar openness.

Which of the Following Forces Does Not Contribute to Keeping