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  • 23.04.2010
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Adult lung volume

Lung volumes and lung capacities refer to the volume of air in the lungs at different phases of the respiratory cycle. The average total lung capacity of an adult. The average total lung capacity of an adult human male is about 6 litres of air. A number of the lung volumes can be measured by Spirometry- Tidal volume. Lung capacity or total lung capacity (TLC) is the volume of air in the lungs upon the maximum effort of inspiration. Among healthy adults, the. Lung Volumes Lung volumes and lung capacities refer to the volume of air associated with different phases of the respiratory cycle. Lung volumes are directly measured. Lung capacities are inferred from lung volumes. The average total lung capacity of an adult human male is about 6 litres of air, but only a small amount of this capacity is used. Sep 20,  · Total lung capacity refers to the maximum amount of air a person’s lungs can hold, about four to six liters ( to cm 3) for the average human. Only a third of this capacity is used during normal activity, but this fraction increases during strenuous activity when the body requires more oxygen. Residual volume (RV), about 1, mL, is the volume of air still remaining in the lungs after the expiratory reserve volume is exhaled. Summing specific lung volumes produces the following lung capacities: The total lung capacity (TLC), about 6, mL, is the maximum amount of air that can fill the lungs (TLC = TV + IRV + ERV + RV).
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