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  2. Respiratory system - Wikipedia

    en.wikipedia.org/wiki/Respiratory_system

    In humans and other mammals, the anatomy of a typical respiratory system is the respiratory tract.The tract is divided into an upper and a lower respiratory tract.The upper tract includes the nose, nasal cavities, sinuses, pharynx and the part of the larynx above the vocal folds.

  3. Respiratory tract - Wikipedia

    en.wikipedia.org/wiki/Respiratory_tract

    Complete respiratory system. The respiratory tract is divided into the upper airways and lower airways.The upper airways or upper respiratory tract includes the nose and nasal passages, paranasal sinuses, the pharynx, and the portion of the larynx above the vocal folds (cords).

  4. 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.

  5. Arthropod - Wikipedia

    en.wikipedia.org/wiki/Arthropod

    Afrikaans; Alemannisch; አማርኛ; العربية; Aragonés; অসমীয়া; Asturianu; Avañe'ẽ; Azərbaycanca; تۆرکجه; বাংলা; 閩南語 ...

  6. Anus - Wikipedia

    en.wikipedia.org/wiki/Anus

    In mammals, invertebrates and most fish, [1] [2] the anus (pl.: anuses or ani; from Latin, 'ring' or 'circle') is the external body orifice at the exit end of the digestive tract (), i.e. the opposite end from the mouth.

  7. File:Cranial sinus and postcranial air sac systems in birds.svg

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

    English: The respiratory system in a bird, showing lungs, abdominal air sac, anterior thoracic air sac, cervical air sac, clavicular air sa, humeral diverticulum of the clavicular air sac, paranasal sinus, posterior thoracic air sac, paratympanic sinus, and trachea.

  8. 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.

  9. Infant respiratory distress syndrome - Wikipedia

    en.wikipedia.org/wiki/Infant_respiratory...

    Infant respiratory distress syndrome (IRDS), also known as surfactant deficiency disorder (SDD), [2] and previously called hyaline membrane disease (HMD), is a syndrome in premature infants caused by developmental insufficiency of pulmonary surfactant production and structural immaturity in the lungs.