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Chronic Obstructive Pulmonary Diseases (COPD)

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Chronic Obstructive Pulmonary Diseases (COPD)

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major cause of disability and death in North America.
Examples: Emphysema and Chronic Bronchitis

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when a gas is in contact with a liquid, the gas will dissolve in the liquid in proportion to it's partial pressure. Accordingly, the greater the concentration of a particular gas in the gas phase, the more and the faster that gas will into solution in the liquid.

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the total pressure exerted by a mixture of gases is the sum of the pressures exerted independently by each has in the mixture.

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symptoms: headaches, shortness of breath, nausea, and dizziness

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Less oxygen in the air, stronger respiration are needed to supply oxygen to the bloodstream.
If above 8000ft above sea level, the body responds with symptoms of acute mountain sickness

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Partial Pressure Gradients Promoting Gas Movements in the Body

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Partial Pressure Gradients Promoting Gas Movements in the Body

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the presence of air in the pleural cavity, treated by drawing air out using chest tubes

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Sequence of Events During Inspiration and Expiration.

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Consists of inspiration and expiration, a process which depends on volume changes in the thoracic cavity.
Volume Changes lead to pressure changes, pressure changes lead to the flow of gases to equalize the pressure.

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22.1 Upper Respiratory System Warms, Humidifies, and Filters Air  

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22.1 Upper Respiratory System Warms, Humidifies, and Filters Air  