Over-inflation of the lung is prevented by?

• Hering- Breuer reflex is reflex triggered to prevent over inflation of lung. • Smooth muscles of the lung have pulmonary stretch receptors which respond to excessive stretching of the lung during large inspirations. • The reflex limits the tidal volume while increasing the respiratory frequency • Hering Breuer inflation reflex increases in duration of expiration produced by steady lung inflation. • Hering breur deflation reflex is a decrease in the duration of expiration produced by steady lung deflation. • Surfactant prevents the collapse of the lung.