Expiratory reserve volume



expiratory reserve volume n.
Abbr. ERV
The maximal volume of air, usually about 1000 milliliters, that can be expelled from the lungs after normal expiration. Also called reserve air, supplemental air.

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    expiratory stridor n. A singing sound during general anesthesia due to the semi-approximated vocal cords offering resistance to the escape of air.

  • Expire

    [ik-spahyuh r] /ɪkˈspaɪər/ verb (used without object), expired, expiring. 1. to come to an end; terminate, as a contract, guarantee, or offer. 2. to emit the last breath; die. 3. to breathe out. 4. to die out, as a fire. verb (used with object), expired, expiring. 5. to breathe out; emit (air) from the lungs. […]



  • Expired

    [ik-spahyuh r] /ɪkˈspaɪər/ verb (used without object), expired, expiring. 1. to come to an end; terminate, as a contract, guarantee, or offer. 2. to emit the last breath; die. 3. to breathe out. 4. to die out, as a fire. verb (used with object), expired, expiring. 5. to breathe out; emit (air) from the lungs. […]

  • Expired gas

    expired gas n.



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