| 单词 | functional residual capacity |
| 释义 | > as lemmasfunctional residual capacity functional residual capacity n. [compare German funktionelle Residualluft (C. Lundgaard & K. Schierbeck 1923, in Acta Medica Scandinavica 28 553); compare quot. 1924] Physiology the volume of air left in the lungs after normal (rather than forced) expiration; abbreviated FRC. ΚΠ 1924 Jrnl. Exper. Med. 39 677 For this lung volume we have preferred the term given by Lundsgaard.., functional residual air.] 1934 C. J. Wiggers Physiol. Health & Dis. xxiv. 343 The sum of the residual and reserve air is variously called the normal capacity, the midcapacity, or the functional residual capacity. 1969 Brit. Med. Jrnl. 20 Dec. 710/1 The present investigation was undertaken to measure blood gases and functional residual capacity (F.R.C.) in a group of [asthmatic] patients. 2000 J. Sundberg in J. Potter Cambr. Compan. Singing xix. 234 At a certain lung volume, generally near 40 per cent of maximum lung volume, the expiratory and inspiratory elasticity forces are equal. In tidal breathing, inhalations are started from this lung volume, which is called the Functional Residual Capacity, or FRC. < as lemmas |
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