Lungs do not collapse during expiration because of the presence of?
b. Dipalmitoyl phosphatidyl choline(Ref: Ghai 8/e p 169-170)Dipalmitoyl phosphatidyl choline is an important constituent of Surfactant, which prevent alveolar collapse during expiration.
Hyaline membrane
Dipalmitoyl phosphatidyl choline
Macrophages
Interstitial fluid
New Born Infants