restrictive lung diseases
restrictive lung diseases include conditions producing'stiff lungs',such as silicosis,pneumoconiosis(a general term for lung disease caused by inhalation of mineral dust),and tuberculosis.in addition,restrictive lung diseases include conditions producing paralysis of intercostal muscles,pulmonary edema,and a reduction in the production of surfactant(McLuckie,2009).
obstructive lung diseases
as previously mentioned,obstructive lung diseases result from increases in airway resistance and include conditions such as bronchitis,emphysema and asthma.(note:in emphysema there is an increase in lung compliance owing to the destruction of elastic fibres in alveolar walls.)these lung diseases are grouped together under the term of COPD(McLuckie,2009).