What is the difference between respiratory volumes and respiratory capacities?
What is the difference between respiratory volumes and respiratory capacities?
Lung volumes are also known as respiratory volumes. It indicates the volume of the gas present in the lungs at any given period during the respiratory cycle. An average human lung can hold up about 6L of air at a given time.
There are many types of lung volumes like tidal volumes , inspiratory reserve volume , expiratory reserve volume.
Tidal Volume is the amount of air that can be inhaled or exhaled during one respiratory cycle. This explains the mechanics of the chest wall.
Expiratory volume is the air that can be forcibly exhaled after exhalation of normal tidal
Volume.
Residual volume is the volume of air left after the maximal exhalation.
Inspiratory volume is the maximum volume of air that can be inhaled after a normal tidal volume. It is mainly used in deep breathing. The normal adult value ranges from 1900-3300ml.
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