![]() ![]() this means that exchange of gases is not interrupted between breath. It is equal to ERV+ RV= 1100+1200= 2300ml.ue the pr ocess of respiration.This is the amount of air remaining in the lungs after normal expiration.It consists of the tidal volume (500 ml) plus the inspiratory reserve volume.This is the amount of air that can be inspired with maximum effort. ![]() ![]() This is the total volume of air which can be expelled from the lungs forcefully during normal expiration.This is the volume of air that can be inhaled into the lungs during normal inspiration.This is the amount of air passing into and out of the lungs during each cycle of breathing.The amount of air present in lung under different condition is known as pulmonary air volume and the capacities of lungs to hold air varies according to conditions.The amount of air exchanged during breathing is measured by an instrument called Spirometer or Resprometer. In normal quiet breathing there are about 15 complete respiratory cycles per minute. ![]()
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