⟩ Pulmonary surfactant
* a) Prevents large alveoli from emptying into smaller alveoli
* b) Prevents forced expiratory efforts from emptying the alveoli.
* c) Increases the filtration of fluid from pulmonary capillaries into the alveoli.
* d) Prevents small alveoli from emptying into large alveoli
* e) Keeps the lungs and thoracic wall together
Answer - d