expiratory air

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• Air trapping — Air trapping, also called gas trapping, is an abnormal retention of air in the lungs after expiration. It is observed in obstructive lung diseases such as asthma, and chronic obstructive pulmonary disease. The cause is obstruction such that the… …   Wikipedia

• Expiratory — Ex*pir a*to*ry, a. (Physiol.) Pertaining to, or employed in, the expiration or emission of air from the lungs; as, the expiratory muscles. [1913 Webster] …   The Collaborative International Dictionary of English

• expiratory reserve volume — n the additional amount of air that can be expired from the lungs by determined effort after normal expiration compare INSPIRATORY RESERVE VOLUME * * * (ERV) the maximal amount of gas that can be exhaled from the resting end expiratory level. See …   Medical dictionary

• expiratory — [ek spī′rə tôr΄ē, ekspī′ər ətôr′ē; ikspī′rə tôr′ē, ikspī′ər ə tôr′ē] adj. of expiration; relating to breathing out air from the lungs …   English World dictionary

• expiratory — Relating to expiration. * * * ex·pi·ra·to·ry ik spī rə .tōr ē, ek , .tȯr ; ek sp(ə )rə adj of, relating to, or employed in the expiration of air from the lungs <expiratory muscles> <an expiratory cough> * * * ex·pi·ra·to·ry (ek… …   Medical dictionary

• air — 1. A mixture of odorless gases found in the atmosphere in the following approximate percentages by volume after water vapor has been removed: oxygen, 20.95; nitrogen, 78.08; argon 0.93; carbon dioxide, 0.03; other gases, 0.01. Formerly used to …   Medical dictionary

• expiratory — expire ► VERB 1) (of a document or agreement) come to the end of the period of validity. 2) (of a period of time) come to an end. 3) (of a person) die. 4) technical exhale (air) from the lungs. DERIVATIVES expiration noun expiratory adjective …   English terms dictionary

• expiratory — adjective Date: circa 1847 of, relating to, or employed in the expiration of air from the lungs …   New Collegiate Dictionary

• expiratory — /ik spuyeur euh tawr ee, tohr ee/, adj. pertaining to the expiration of air from the lungs. [1840 50; EXPIRAT(ION) + ORY1] * * * …   Universalium

• expiratory dyspnea — dyspnea caused by hindrance to the free exhalation of air from the lungs …   Medical dictionary

• expiratory — ex·pir·a·to·ry || ɪk spaɪərÉ™tÉ™rɪ adj. pertaining to breathing out air from the lungs …   English contemporary dictionary