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  2. Bronchiole - Wikipedia

    en.wikipedia.org/wiki/Bronchiole

    A lobule of the lung enclosed in septa and supplied by a terminal bronchiole that branches into the respiratory bronchioles. Each respiratory bronchiole supplies the alveoli held in each acinus accompanied by a pulmonary artery branch. The pulmonary lobule is the portion of the lung ventilated by one bronchiole.

  3. Respiratory system - Wikipedia

    en.wikipedia.org/wiki/Respiratory_system

    The alveoli are the dead end terminals of the "tree", meaning that any air that enters them has to exit via the same route. A system such as this creates dead space, a volume of air (about 150 ml in the adult human) that fills the airways after exhalation and is breathed back into the alveoli before environmental air reaches them.

  4. Pneumonitis - Wikipedia

    en.wikipedia.org/wiki/Pneumonitis

    Any particles that are smaller than 5 microns can enter the alveoli of the lungs. [9] These tiny air sacs facilitate the passage of oxygen from inhaled air to the bloodstream. [citation needed] In the case of pneumonitis, it is more difficult for this exchange of oxygen to occur since irritants have caused inflammation of the alveoli. [3]

  5. Pulmonary alveolus - Wikipedia

    en.wikipedia.org/wiki/Pulmonary_alveolus

    Almost any type of lung tumor or lung cancer can compress the alveoli and reduce gas exchange capacity. In some cases the tumor will fill the alveoli. [33] Cavitary pneumonia is a process in which the alveoli are destroyed and produce a cavity. As the alveoli are destroyed, the surface area for gas exchange to occur becomes reduced.

  6. Pneumonia - Wikipedia

    en.wikipedia.org/wiki/Pneumonia

    Pneumonia is an inflammatory condition of the lung primarily affecting the small air sacs known as alveoli. [3] [14] Symptoms typically include some combination of productive or dry cough, chest pain, fever, and difficulty breathing. [15]

  7. Respiration (physiology) - Wikipedia

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

    The process of breathing does not fill the alveoli with atmospheric air during each inhalation (about 350 ml per breath), but the inhaled air is carefully diluted and thoroughly mixed with a large volume of gas (about 2.5 liters in adult humans) known as the functional residual capacity which remains in the lungs after each exhalation, and ...

  8. Lung - Wikipedia

    en.wikipedia.org/wiki/Lung

    Elastin is more concentrated in areas of high stress such as the openings of the alveoli, and alveolar junctions. [19] The connective tissue links all the alveoli to form the lung parenchyma which has a sponge-like appearance. The alveoli have interconnecting air passages in their walls known as the pores of Kohn. [20]

  9. Pulmonary consolidation - Wikipedia

    en.wikipedia.org/wiki/Pulmonary_consolidation

    Consolidation occurs through accumulation of inflammatory cellular exudate in the alveoli and adjoining ducts. The liquid can be pulmonary edema, inflammatory exudate, pus, inhaled water, or blood (from bronchial tree or hemorrhage from a pulmonary artery).