Which of the Following Does NOT Contribute to Keeping the Alveoli

Question

Which of the following does NOT contribute to keeping the alveoli open
A)alveolar surface tension
B)transmural pressure gradient
C)pulmonary surfactant
D)alveolar interdependence

Accepted Answer

Alveolar surface tension tends to collapse the alveoli rather than keep them open. Pulmonary surfactant, transmural pressure gradient, and alveolar interdependence all contribute to keeping the alveoli open by reducing surface tension, maintaining a pressure difference, and providing structural support, respectively.