1- What value is obtained by adding inspiratory reserve volume, tidal volume, and expiratory reserve volume?
2- Most doctors agree that after a person quits smoking, the deposits in their lungs will be removed after a period of time, depending on how long the person smoked. What mechanism removes these deposits?
Expiratory reserve volume is the volume of additional air that can be exhaled after normal exhalation. Inspiratory reserve volume is the volume of additional air that can be inhaled after normal inhalation. Tidal volume is the air inhaled per normal single breath. The sum of these three in total gives an idea on the maximum volume of air inhaled or exhaled during a respiratory cycle and is known as the VITAL CAPACITY.
Smoking habit induce inflammation during the preliminary stage. At the same time, the function of cilia declines. As soon as a person quit smoking, the inflammatory reaction declines. The cilia also gradually start functioning. Cilia plays an important role in removing mucus as well as foreign particles that enter via respiration. A complete cessation of smoking makes up the lungs to regain its normal stage.
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