Distinguish between Vital capacity and Total lung capacity
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Solution
Vital capacity (VC) |
Total lung capacity (TLC) |
|
1 | It is the amount of air which one can inhale and exhale with maximum effort | It is the total amount of air present in the lungs and the respiratory passage after a maximum inspiration |
2 |
It is the sum of tidal volume, inspiratory reserve volume (VC = TV + IRV + ERV). It varies from 4 - 4.6 liters in a normal adult person |
It bis the sum of the vital capacity and the residual volume (TLC = VC + RV). it is 5100 to 5800 mL. |
Concept: Respiratory Volumes and Capacities
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