| 单词 | rheoscopic frog |
| 释义 | > as lemmasrheoscopic frog 1. Designating a preparation of a muscle and attached nerve of a frog used for detecting electric currents; of or relating to such a preparation; esp. in rheoscopic frog. Cf. physiological rheoscope n. at physiological adj. Compounds. Now historical. ΘΚΠ the world > life > biology > biological processes > action of nervous system > [adjective] > electrical phenomena electromotive1800 neuroelectric1843 bioelectric1849 rheoscopic1851 anelectrotonic1862 monophasic1888 off1903 on1903 bioelectrical1910 neuroelectrical1914 rheobasic1917 myoelectric1955 myoelectrical1970 the world > matter > physics > electromagnetic radiation > electricity > electricity in living organisms > [adjective] > of currents > in nerves of frogs rheoscopic1851 1851 Buffalo Med. Jrnl. 6 518 Nobili has himself indicated the habit of the frog, which M. Matteucci afterwards, denominated the galvanoscopic frog,..and which Du Bois Reymond has since called the rheoscopic frog. 1877 M. Foster Text Bk. Physiol. 107 (note) The absence of tetanus in a rheoscopic muscle. 1922 W. H. Howell Text-bk. Physiol. (ed. 8) iv. 107 The rheoscopic preparation may be used very beautifully to demonstrate the action current in the contracting heart muscle. 1983 Med. Instrumentation 17 235 The rheoscopic frog, an isolated nerve-muscle preparation from the leg of a frog,..was used for more than half of the 19th century as a biological galvanometer. 2003 Brit. Jrnl. Hist. Sci. 36 266 Considering the rheoscopic frog's advantages as a detector of animal electricity, one wonders why du Bois-Reymond bothered with a galvanometer at all. < as lemmas |
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