| 单词 | marchi method |
| 释义 | > as lemmasMarchi method 1. attributive and (now rarely) in the genitive. Designating a method of fixing and staining nerve tissue to identify degenerating myelin, which is selectively stained black; esp. in Marchi method, Marchi technique. Also: designating the combination of reagents (a solution of potassium bichromate and osmium tetroxide) employed in this method. ΚΠ 1900 A. Hill tr. H. Obersteiner Anat. Central Nervous Organs (ed. 2) i. 30 Marchi's method of staining is most sensitive to degenerative changes in nerve-tissue. 1926 H. M. Carleton Histol. Technique xiii. 262 The same remarks regarding the time limits of its application apply as to the Marchi technique. 1970 C. R. Leeson et al. Textbk. Histol. (ed. 2) x. 211/1 Osmium tetroxide blackens myelin and when used with potassium bichromate (Marchi stain), demonstrates degenerating fibers. 1974 C. F. A. Culling Handbk. Histol. & Histochem. Techniques (ed. 3) 450 It is said that Marchi's fluid may be used directly as a fixative. 1990 Brain 113 305 The corticospinal tract consists mainly of small diameter fibres, many of which will not be stained by the Marchi method, but they run intermingled with the larger Marchi-stained fibres. < as lemmas |
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