| 单词 | refractory period |
| 释义 | > as lemmasrefractory period refractory period n. (a) Physiology a period of absent or reduced physiological responsiveness, esp. that of a muscle, nerve, or cell following an effective stimulus; (b) Psychology a period after orgasm during which further sexual arousal or orgasm is difficult or impossible. ΘΚΠ the world > life > biology > biological processes > stimulation > [noun] > unresponsiveness > period of refractory period1878 1878 Rep. Dis. Chest 3 160 The refractory period may possibly outlast the ventricular systole. 1937 L. V. Heilbrunn Outl. Gen. Physiol. xxxvi. 415 In skeletal muscle, the refractory period is much shorter than in cardiac muscle. 1952 Jrnl. Physiol. 117 534 After the earliest stimulus the membrane potential falls again with hardly a sign of activity, and the membrane can be said to be in the ‘absolute refractory period’. The later stimuli produce action potentials of increasing amplitude, but still smaller than the control; these are in the ‘relative refractory period’. 1967 J. L. McCary Human Sexuality xi. 176 After orgasm, the man enters the refractory period..; the sexual stimulation that was previously effective and pleasurable now becomes unavailing and distasteful. Women, on the other hand, usually do not go into a refractory period. 1995 Sci. Amer. Aug. 53/1 We now know the reason, although we did not at first: real neurons exhibit a refractory period, or ‘dead time’, after each firing event. < as lemmas |
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