14 lines
674 B
Markdown
14 lines
674 B
Markdown
Video "Lung Function"
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### 4 volumes:
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- Tidal volume: 500-750ml and is the amount of air normally breathed in and out
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- Inspiratory reserve volume: The difference in the total volume of air inspired with maximum inspiratory effort compared to the tidal volume. Typically about 3L.
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- Expiratory reserve volume: The amount of air that can be exhaled in addition to the tidal volume. Typically about 1.5L.
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- Residual volume: The amount of air remaining in the lungs after maximum expiratory effort. Typically about 1L.
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### Lung capacities:
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- Total lung capacity: the sum of the four lung volumes (about 6L).
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### Question:
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Why can we not breathe out all the air in our lungs?
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