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  2. Negative pressure ventilator - Wikipedia

    en.wikipedia.org/wiki/Negative_pressure_ventilator

    A negative pressure ventilator (NPV) is a type of mechanical ventilator that stimulates an ill person's breathing by periodically applying negative air pressure to their body to expand and contract the chest cavity.

  3. Iron lung - Wikipedia

    en.wikipedia.org/wiki/Iron_lung

    Humans, like most mammals, breathe by negative pressure breathing: [12] the rib cage expands and the diaphragm contracts, expanding the chest cavity. This causes the pressure in the chest cavity to decrease, and the lungs expand to fill the space. This, in turn, causes the pressure of the air inside the lungs to decrease (it becomes negative ...

  4. Ventilation–perfusion coupling - Wikipedia

    en.wikipedia.org/wiki/Ventilation–perfusion...

    The diaphragm and intercostal thoracic muscles alter the lung's pressure gradient, which generates ventilation driving force. The bottom region near the diaphragm is known as the 'base' of the lung, and the top of the lung near the upper lobe is referred to as the 'apex' of the lung.

  5. Diaphragmatic breathing - Wikipedia

    en.wikipedia.org/wiki/Diaphragmatic_breathing

    Animation of diaphragmatic breathing with the diaphragm shown in green. Diaphragmatic breathing, abdominal breathing, belly breathing, [1] or deep breathing, [2] is breathing that is done by contracting the diaphragm, a muscle located horizontally between the thoracic cavity and abdominal cavity.

  6. Respiratory examination - Wikipedia

    en.wikipedia.org/wiki/Respiratory_examination

    Diaphragmatic breathing, paradoxical movement of the diaphragm outwards during inspiration; Intercostal indrawing; Decreased chestchest movement on the affected side; An increased jugular venous pressure, indicating possible right heart failure [5] The anterior and posterior chest wall are also inspected for any abnormalities, which may include:

  7. Shallow breathing - Wikipedia

    en.wikipedia.org/wiki/Shallow_breathing

    Shallow breathing, thoracic breathing, costal breathing or chest breathing [1] is the drawing of minimal breath into the lungs, usually by drawing air into the chest area using the intercostal muscles rather than throughout the lungs via the diaphragm. Shallow breathing can result in or be symptomatic of rapid breathing and hypoventilation ...

  8. Artificial ventilation - Wikipedia

    en.wikipedia.org/wiki/Artificial_ventilation

    [12] [13] Diaphragm pacing is a technique used by persons with spinal cord injuries who are on a mechanical ventilator to aid with breathing, speaking, and overall quality of life. It may be possible to reduce reliance on a mechanical ventilator with diaphragm pacing. [14]

  9. Papworth method - Wikipedia

    en.wikipedia.org/wiki/Papworth_method

    The Papworth method is a specific diaphragmatic breathing technique that was developed in the 1960s. The technique emphasises nose breathing and the development of a breathing pattern to suit current activity. It also involves relaxation exercises that, in concert with the breathing technique, have been purported to aid depression and anxiety.