Term
| Inspiratory Reserve Volume (IRV) |
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Definition
| Amount of air that can be forcefully inhaled. Typically 3100 mL |
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Term
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Definition
| Volume of relaxed breathing. Typically 500 mL |
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Term
| Expiratory Reserve Volume (ERV) |
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Definition
| Amount of air that can be forcefully exhaled after a normal tidal volume exhalation. Typically 1200 mL. |
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Term
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Definition
| Amount of air that cannot be exhaled. Typically 1200 mL. |
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Term
| Inspiratory Capacity (IC) |
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Definition
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Term
| Functional Residual Capacity (FRC) |
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Definition
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Term
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Definition
| IRV + TV + ERV (Should be around 4800 mL) |
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Term
| Total Lung Capacity (TLC) |
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Definition
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Term
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Definition
| air coming into the pleura where it shouldn’t be |
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Term
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Definition
| liquid in the lungs where it shouldn’t be |
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Term
| Stages of respiration (5) |
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Definition
1. Ventilation (by bulk flow that results from a pressure gradient)
2. Exchange of oxygen and carbon dioxide between lung and blood (by diffusion)
3. Transport of gases to tissues via blood (by bulk flow that results from a pressure gradient but is also dependent on the gas content of blood))
4. Exchange of oxygen and carbon dioxide between blood and tissues (by diffusion)
5. Cellular utilization of oxygen and production of carbon dioxide |
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Term
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Definition
(occurs by bulk flow)
(Alveolar pressure - Atmospheric pressure)/Airway resistance = airflow |
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