Term
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Definition
| Dysfunction of one or both diaphragms is usually a cause of dyspnea, and it often leads to weakness or paralysis of the diaphragm. The most common sign of diaphragmatic dysfunction is the abdominal paradox, which refers to the inward motion of the abdomen when the rib cage expands |
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Term
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Definition
| Airway resistance is the opposition to flow caused by the forces of friction. It is defined as the ratio of driving pressure to the rate of air flow. Resistance to flow in the airways depends on whether the flow is laminar or turbulent, on the dimensions of the airway, and on the viscosity of the gas. |
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Term
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Definition
| lack of synchronism; disturbance of coordination. 2. occurrence at distinct times of events normally synchronous; disturbance of coordination |
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Term
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Definition
| Auto (intrinsic) PEEP — Incomplete expiration prior to the initiation of the next breath causes progressive air trapping (hyperinflation). This accumulation of air increases alveolar pressure at the end of expiration, which is referred to as auto-PEEP |
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Term
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Definition
| Barotrauma refers to injuries caused by increased air or water pressure, such as during airplane flights or scuba diving. Barotrauma of the ear is common. Generalized barotraumas, also called decompression sickness, affects the entire body. Your middle ear includes the eardrum and the space behind it. |
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Term
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Definition
| is an instrument for measuring changes in volume within an organ or whole body (usually resulting from fluctuations in the amount of blood or air it contains) |
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Term
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Definition
| is the volume of lung inflated when small airways in the dependent parts of the lung begin to collapse during expiration. In normal health, closing volume is less than FRC and accounts for the residual volume (RV) of the lung at the end of expiration |
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Term
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Definition
| Pulmonary compliance (or lung compliance) is a measure of the lung's ability to stretch and expand (distensability of elastic tissue). In clinical practice it is separated into two different measurements, static compliance and dynamic compliance |
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Term
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Definition
| Compliance is the slope of the pressure-volume curve. But when plotting lung-chest wall volume vs. pressure, the curve is not the same during inflation and deflation. The dependence of a property on past history is termed hysteresis. |
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