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  2. File:Alveolus diagram.svg - Wikipedia

    en.wikipedia.org/wiki/File:Alveolus_diagram.svg

    An alveolus (plural: alveoli, from Latin alveus, "little cavity"), is an anatomical structure that has the form of a hollow cavity. Mainly found in the lung, the pulmonary alveoli are spherical outcroppings of the respiratory bronchioles and are the primary sites of gas exchange with the blood. Date: December 2007: Source: Own work using:

  3. File:An annotated diagram of an alveolus.svg - Wikipedia

    en.wikipedia.org/wiki/File:An_annotated_diagram...

    English: An alveolus is a air sac found in the bronchi of the lungs. The alveoli are surrounded by a capillary bed. The alveoli are surrounded by a capillary bed. The type I pneumocytes allow gas exchange, while the type II pneumocytes produce surfactant to prevent the collapse of the alveolus.

  4. Pulmonary alveolus - Wikipedia

    en.wikipedia.org/wiki/Pulmonary_alveolus

    A pulmonary alveolus (pl. alveoli; from Latin alveolus 'little cavity'), also called an air sac or air space, is one of millions of hollow, distensible cup-shaped cavities in the lungs where pulmonary gas exchange takes place. [1] Oxygen is exchanged for carbon dioxide at the blood–air barrier between the alveolar air and the pulmonary ...

  5. Respiratory system - Wikipedia

    en.wikipedia.org/wiki/Respiratory_system

    Fig. 15 The arrangement of the air sacs and lungs in birds Fig. 16 The anatomy of bird's respiratory system, showing the relationships of the trachea, primary and intra-pulmonary bronchi, the dorso- and ventro-bronchi, with the parabronchi running between the two. The posterior and anterior air sacs are also indicated, but not to scale.

  6. File:Cross section of an alveolus and capillaries showing ...

    en.wikipedia.org/wiki/File:Cross_section_of_an...

    The file size of this SVG image may be abnormally large because most or all of its text has been converted to paths rather than using the more conventional <text> element. . Unless rendering the text of the SVG file produces an image with text that is incurably unreadable due to technical limitations, it is highly recommended to change the paths back to t

  7. Respiratory tract - Wikipedia

    en.wikipedia.org/wiki/Respiratory_tract

    alveolus; At each division point or generation, one airway branches into two smaller airways. The human respiratory tree may consist on average of 23 generations, while the respiratory tree of the mouse has up to 13 generations. Proximal divisions (those closest to the top of the tree, such as the bronchi) mainly function to transmit air to the ...

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  9. Lung - Wikipedia

    en.wikipedia.org/wiki/Lung

    The cross-current respiratory gas exchanger in the lungs of birds. Air is forced from the air sacs unidirectionally (from left to right in the diagram) through the parabronchi. The pulmonary capillaries surround the parabronchi in the manner shown (blood flowing from below the parabronchus to above it in the diagram).

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