True: Smoking causes damage to alveoli., Smoking causes shortness of breath., The lungs contain around 500 million tiny air sacs., Smoking kills the epithelial cells which lines the air sacs., False: The lungs get less fibrous and more smooth with smoking., With smoking inhalation becomes easier than exhalation., Smoking does not cause lung cancer, stress does., The tissues of the lungs can grow back or regenerate itself.,

Effects of smoking on the respiratory system

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