What is the primary mechanism that stops the lungs from collapsing at the end of exhalation?
A) Radial tethers, stretched to their maximum length, then halt lung collapse.
B) Surfactant neutralizes the tendency of the lung to collapse.
C) There is a tendency of the chest wall to lock at the level of FRC.
D) There is an equal opposing tendency of the chest wall to expand.

Question

Quizplus · Accepted Answer

This tendency of the lung to collapse is counteracted by the thoracic wall's tendency to spring outward and to hold the lung inflated.

What Is the Primary Mechanism That Stops the Lungs from Collapsing