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28 Cards in this Set
- Front
- Back
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The atmospheric zone in which the human body is well adapted.
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The Physiologic Zone
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Extends from 10,000 feet to 50,000 feet.
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The physiologically deficient zone.
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Human survival requires the use of pressure suits, self-contained oxygen systems, sealed cabins, and a heat source also known as the atmospheric zone.
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The space-equivalent zone
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Weather is primarily located in which atmosphere?
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The Troposphere
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The gas cloud surrounding the earth?
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The Atmosphere (Earth)
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Gas molecules that are in constant, rapid motion is better known as ?
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Diffusion
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Gas molecules collide with the walls of the container holding them which produces _______?
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Pressure
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The pressure on the earth and its inhabitants, caused by the weight of atmospheric gases in conjuction with gravity is known as?
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Atmospheric Pressure
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______ is the total pressure in a container is the sum of the partial pressures of all the gases in the container.
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Dalton's Law
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The volume of a gas is directly related to its _______.
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Pressure
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In a mixed gas solution, such as atmospheric air, the pressure is proportional to the pressure caused by each gas alone is known as _________?
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Partial Pressure
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The four principle gases that impact aviation medicine are ______?
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Oxygen, Nitrogen, Carbon Dioxide, and Water Vapor
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The volume of a gas is inversely proportional to its pressure, assuming temperature remains constant is known as _______?
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Boyle's Law
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The volume of a quantity of gas, held at constant pressure, varies directly with the temperature of said gas.
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Charle's Law
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The pressure of a fixed amount of gas (fixed number of moles) at a fixed volume, proportional to the temperature.
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Gay-Lussac's Law
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At equilibrium, the amount of gas dissolved in a given volume of liquid, directly proportional to the partial pressure of that gas in the gas phase.
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Henry's Law
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The rate at which gasses diffuse, inversely proportional to the square root of their densities.
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Graham's Law
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The net diffusion rate of a gas across a liquid membrane is proportional to the difference in partial pressure, proportional to the area of the membrane, and inversely proportional to the thickness of the membrane.
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Fick's Law
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Equal volume of all gases under identical conditions of pressure and temperature contain the same number of molecules.
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Avogardro's Law
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An ideal gas (perfect gas) is one of that obeys Boyle's law, Charle's law, and Avogadro's law exactly.
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Ideal gas law
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An indequate supply of oxygen for normal cellular function.
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Hypoxia
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A deficiency of oxygen in the blood.
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Hypoxemia
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The four categories of hypoxia are ___________?
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Hypoxic Hypoxia, Anemic Hypoxia, Stagnant Hypoxia, and Histotoxic Hypoxia
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The reduction of oxygen in the blood as a result of ascent to altitude is called ___________?
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Altitude Hypoxia
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An inadequate PaO2 caused by reduced oxygen in the atmosphere or inadequate gas exchange at he alveolar-capillary membrane, resulting in inadequate oxygenation of the arterial blood.
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Hypoxic hypoxia
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This results from a reduced oxygen-carrying capacity of hemoglobin.
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Anemic hypoxia
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Occurs when cardiac output fails to meet the metabolic demands of the tissues, causing shock.
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Stagnant hypoxia
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This results when the tissues are unable to utilize available oxygen.
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Histotoxic hypoxia
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