What is the pathophysiology of pulmonary emphysema?    I. De…

What is the pathophysiology of pulmonary emphysema?    I. Destruction of alveolar septa and Enlargement of alveoli II. Scarred alveoli and Reduction of alveoli III. Loss of elasticity of the lung and Loss of pulmonary capillary bed IV. Dilation of airways and Low residual volume