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  2. Intrapleural pressure - Wikipedia

    en.wikipedia.org/wiki/Intrapleural_pressure

    At rest, there is a negative intrapleural pressure. This provides a transpulmonary pressure, causing the lungs to expand. If humans didn't maintain a slightly negative pressure even when exhaling, their lungs would collapse on themselves because all the air would rush towards the area of lower pressure. Intra-pleural pressure is sub-atmospheric.

  3. How the California wildfires can impact the health of people ...

    www.aol.com/lifestyle/wildfire-season-smoke-poor...

    Youssef points out that his area saw poor air quality for a few weeks until recently due to fires in Visalia, Calif., which is more centrally located in the state and hundreds of miles away.

  4. Southern California fire weather expected to linger. What ...

    www.aol.com/southern-california-fire-weather...

    With fires still raging around Los Angeles and high winds expected to last through Friday, it's not clear when air quality in the region will improve, local experts said Thursday. The time it will ...

  5. How bad is NJ-NY wildfire air quality health risk? What we ...

    www.aol.com/bad-nj-ny-wildfire-air-172545388.html

    Toxic wildfire smoke triggered an air quality health advisory for the New York City metro region on Saturday, impacting millions of people and underscoring climate change’s rising threat to ...

  6. Transpulmonary pressure - Wikipedia

    en.wikipedia.org/wiki/Transpulmonary_pressure

    If 'transpulmonary pressure' = 0 (alveolar pressure = intrapleural pressure), such as when the lungs are removed from the chest cavity or air enters the intrapleural space (a pneumothorax), the lungs collapse as a result of their inherent elastic recoil. Under physiological conditions the transpulmonary pressure is always positive; intrapleural ...

  7. Lung compliance - Wikipedia

    en.wikipedia.org/wiki/Lung_compliance

    Pulmonary compliance is calculated using the following equation, where ΔV is the change in volume, and ΔP is the change in pleural pressure: = For example, if a patient inhales 500 mL of air from a spirometer with an intrapleural pressure before inspiration of −5 cm H 2 O and −10 cm H 2 O at the end of inspiration.

  8. It's wildfire season in North America: How to prepare for ...

    www.aol.com/wildfire-season-north-america...

    Here's a look at what to do ahead of and during any potential air quality issues this wildfire season. Preparation tips Read the Michigan Department of Natural Resources' wildfire prevention tips .

  9. Inhalation - Wikipedia

    en.wikipedia.org/wiki/Inhalation

    This negative pressure generates airflow because of the pressure difference between the atmosphere and alveolus. The inflow of air into the lungs occurs via the respiratory airways. In health, these airways begin with the nose. [3] [4] It is possible to begin with the mouth, which is the backup breathing system.