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24 Cards in this Set
- Front
- Back
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Tidal Volume |
volume of one breath ( about 500ml)
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Minute ventilation |
volume of air inhaled and exhaled each minute mv= tidal volume X Breaths per minute |
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percentage of air that reaches respiratory zone |
70% |
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inspiratory reserve volume |
additional air inhaled when you take a very deep breath 3100 ml for men 1900 ml for women |
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boyles law |
if lung volume increases, then the pressure must decrease |
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pressure during quiet inhalation... |
the intrapleural presssure is always lower than the atmosphere |
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inhalation accessory muscle |
scalenes, pectoralis minor, sternocleiodmastoid |
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inspiratory capacity |
TV x Inspiratory reserve Extra air that remains in lungs + one breath |
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functional residual capacity |
residual vol + expiratory reserve volume |
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vital capacity |
insp. reserve + TV + Exp. reserve |
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total lung capacity |
vital capacity + Residual |
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daltons law |
Each gas in a mixture exerts its own individual pressure called partial pressure. |
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henrys law |
the higher the solubility and partial pressure of a gas in a liquid, the more it will dissolve |
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Factors of Right shift (low affinity ) |
low pH High partial pressure High Co2 BPG |
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Hypoxic hypoxia |
caused by a low Po2 in the artieral blood as a result of high altitude or lung fluid |
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anemic hypoxia |
too little hemoglovin is present in the blood |
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ischemic hypoxia |
blood flow to tissues is so reduced that not enough o2 is delivered |
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histotoxic hypoxia |
blood delivers adequate O2 to tissues. tissues are unable to use it properlu because of a toxic agent |
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asthma |
chronic airway inflammation , obstruction and hypersensitivity - take an inhaled beta adrenergic agonist ( Albuterol) |
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COPD |
chronic obsturction of airflow . types - emphysema and bronchitis |
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Emphysema |
destruction of alveolar walls. large spaces fill with air during exhalation and less surface space |
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bronchitis |
excessive secretion of broncial mucus and a cough |
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pneumonia |
infection of the alveoli |
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Pulmonary edema |
accumultion of fluids in the interstitual spaces of alveoli and lungs. administer oxygen |
