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  2. Physiology of decompression - Wikipedia

    en.wikipedia.org/wiki/Physiology_of_decompression

    Isobaric counterdiffusion (ICD) is the diffusion of gases in opposite directions caused by a change in the composition of the external ambient gas or breathing gas without change in the ambient pressure. During decompression after a dive this can occur when a change is made to the breathing gas, or when the diver moves into a gas filled ...

  3. Oxygen storage - Wikipedia

    en.wikipedia.org/wiki/Oxygen_storage

    Methods of oxygen storage for subsequent use span many approaches, including high pressures in oxygen tanks, cryogenics, oxygen-rich compounds and reaction mixtures, and chemical compounds that reversibly release oxygen upon heating or pressure change. O 2 is the second most important industrial gas.

  4. High-frequency ventilation - Wikipedia

    en.wikipedia.org/wiki/High-frequency_ventilation

    The mean pressure adjust setting adjusts the mean airway pressure (P AW) by controlling the resistance of the airway pressure control valve. The mean airway pressure will change and requires the mean pressure adjust to be adjusted when the following settings are changed: Frequency (Hertz) % Inspiratory time; Power and Δ p change; Piston centering

  5. Control of ventilation - Wikipedia

    en.wikipedia.org/wiki/Control_of_ventilation

    Ventilation facilitates respiration. Respiration refers to the utilization of oxygen and balancing of carbon dioxide by the body as a whole, or by individual cells in cellular respiration. [1] The most important function of breathing is the supplying of oxygen to the body and balancing of the carbon dioxide levels.

  6. Dead space (physiology) - Wikipedia

    en.wikipedia.org/wiki/Dead_space_(physiology)

    The nitrogen concentration then rapidly increases during the brief second phase (phase 2) and finally reaches a plateau in the third phase (phase 3). The anatomic dead space is equal to the volume exhaled during the first phase plus the volume up to the mid-point of the transition from phase 1 to phase 3.

  7. Respiratory system - Wikipedia

    en.wikipedia.org/wiki/Respiratory_system

    The alveolar air pressure is therefore always close to atmospheric air pressure (about 100 kPa at sea level) at rest, with the pressure gradients because of lungs contraction and expansion cause air to move in and out of the lungs during breathing rarely exceeding 2–3 kPa. [18] [19] During exhalation, the diaphragm and intercostal muscles relax.

  8. Inhalation - Wikipedia

    en.wikipedia.org/wiki/Inhalation

    The alveolar air pressure is therefore always close to atmospheric air pressure (about 100 kPa at sea level) at rest, with the pressure gradients that cause air to move in and out of the lungs during breathing rarely exceeding 2–3 kPa. [8] [9] Other muscles that can be involved in inhalation include: [10] External intercostal muscles; Scalene ...

  9. Breathing gas - Wikipedia

    en.wikipedia.org/wiki/Breathing_gas

    A breathing gas is a mixture of gaseous chemical elements and compounds used for respiration. Air is the most common and only natural breathing gas. Other mixtures of gases, or pure oxygen, are also used in breathing equipment and enclosed habitats such as scuba equipment, surface supplied diving equipment, recompression chambers, high-altitude mountaineering, high-flying aircraft, submarines ...