Fig. 1From: COPD – do the right thingThe pathophysiological background to dyspnoea. Alveolar wall destruction leads to loss of elastic ‘passive’ recoil of the alveoli and support for the bronchiole is lost, leading to bronchiole collapse, which in turn results in air trapping, static hyperinflation and increased functional residual capacity [32, 41,42,43]Back to article page