airway resistance

airway resistance
the opposition of the tracheobronchial tree to air flow: the mouth-to-alveoli pressure difference divided by the air flow. Symbol RA or RAW.

Medical dictionary. 2011.

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  • Airway resistance — is a concept used in respiratory physiology to describe mechanical factors which limit the access of inspired air to the pulmonary alveoli, and thus determine airflow.Resistance is greatest at the bronchi of intermediate size, in between the… …   Wikipedia

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  • airway conductance — the reciprocal of airway resistance: the air flow divided by the mouth to alveoli pressure difference …   Medical dictionary

  • Airway (disambiguation) — The term airway may refer to the following medical terms: *Airway, a part of the respiratory system through which air flows *Nasopharyngeal airway, a tube used in the nasal passageway to secure an open airway *Oropharyngeal airway, a medical… …   Wikipedia

  • Airway obstruction — Infobox Disease Name = Airway obstruction Caption = DiseasesDB = ICD10 = ICD9 = ICDO = OMIM = MedlinePlus = eMedicineSubj = eMedicineTopic = MeshID = D000402Airway obstruction is a respiratory problem caused by increased resistance in the… …   Wikipedia

  • Resistance — Opposition to something, or the ability to withstand it. For example, some forms of staphylococcus are resistant to treatment with antibiotics. * * * 1. A force exerted in opposition to an active force. 2. The opposition in a conductor to the… …   Medical dictionary

  • Positive airway pressure — A typical CPAP machine houses the air pump in a case lined with sound absorbing material for quieter operation. A hose carries the pressurized air to a face mask or nasal pillow …   Wikipedia

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