When the lung on the affected side is compressed as a result of a flail chest, gas moves into the unaffected lung during inspiration.

Question

Quizplus · Accepted Answer

When the lung on the affected side is compressed due to a flail chest, the negative pressure within the chest during inspiration draws air into the unaffected lung on the other side, causing uneven ventilation. This is called paradoxical motion of the chest wall.

When the Lung on the Affected Side Is Compressed as a Result