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  2. Respiratory tract - Wikipedia

    en.wikipedia.org/wiki/Respiratory_tract

    The lower respiratory tract is also called the respiratory tree or tracheobronchial tree, to describe the branching structure of airways supplying air to the lungs, and includes the trachea, bronchi and bronchioles. [8] trachea. main bronchus (diameter approximately 1 – 1.4 cm in adults) [9] lobar bronchus (diameter approximately 1 cm)

  3. Respiratory system - Wikipedia

    en.wikipedia.org/wiki/Respiratory_system

    The respiratory system (also respiratory apparatus, ventilatory system) is a biological system consisting of specific organs and structures used for gas exchange in animals and plants. The anatomy and physiology that make this happen varies greatly, depending on the size of the organism, the environment in which it lives and its evolutionary ...

  4. Lung - Wikipedia

    en.wikipedia.org/wiki/Lung

    The respiratory tract has a branching structure, and is also known as the respiratory tree. [53] In the embryo this structure is developed in the process of branching morphogenesis, [54] and is generated by the repeated splitting of the tip of the branch. In the development of the lungs (as in some other organs) the epithelium forms branching ...

  5. Category:Respiratory system - Wikipedia

    en.wikipedia.org/wiki/Category:Respiratory_system

    The respiratory system is the (anatomical) biological system of any organism that engages in metabolic gas exchange. Even plants have respiratory systems, taking in carbon dioxide and emitting oxygen. This category covers the structure of respiratory systems.

  6. Breathing - Wikipedia

    en.wikipedia.org/wiki/Breathing

    Real-time magnetic resonance imaging of the human thorax during breathing X-ray video of a female American alligator while breathing. Breathing (spiration [1] or ventilation) is the rhythmical process of moving air into and out of the lungs to facilitate gas exchange with the internal environment, mostly to flush out carbon dioxide and bring in oxygen.

  7. Category:Respiratory system anatomy - Wikipedia

    en.wikipedia.org/wiki/Category:Respiratory...

    Pages in category "Respiratory system anatomy" The following 19 pages are in this category, out of 19 total. This list may not reflect recent changes. A.

  8. Development of the respiratory system - Wikipedia

    en.wikipedia.org/wiki/Development_of_the...

    The development of the respiratory system begins at about week 4 of gestation. By week 28, enough alveoli have matured that a baby born prematurely at this time can usually breathe on its own. The respiratory system, however, is not fully developed until early childhood, when a full complement of mature alveoli is present.

  9. Enteral respiration - Wikipedia

    en.wikipedia.org/wiki/Enteral_respiration

    Enteral respiration, also referred to as cloacal respiration or intestinal respiration, [1] is a form of respiration in which gas exchange occurs across the epithelia of the enteral system, usually in the caudal cavity ().