. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. -UO ELLIS, THIENES, AND WIERSMA \\"lu'ii the fast and the slow systems were stimulated separately the twitch contraction of the closer could be elicited at a time when faradic stimulation of the slow did not result in any visible effect. This might be the result of a selective blocking of the smaller slow fiber before the larger fast one, as was shown by Escobar (1937) to be characteristic for the narcotic block in vertebrate preparations. The difference in the diameters of the "thick" fast closer fiber and th
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. -UO ELLIS, THIENES, AND WIERSMA \\"lu'ii the fast and the slow systems were stimulated separately the twitch contraction of the closer could be elicited at a time when faradic stimulation of the slow did not result in any visible effect. This might be the result of a selective blocking of the smaller slow fiber before the larger fast one, as was shown by Escobar (1937) to be characteristic for the narcotic block in vertebrate preparations. The difference in the diameters of the "thick" fast closer fiber and the "thin" slow closer axon (58/z and 38/z respectively, see van Harreveld and Wiersma, 1936), however, is hardly great enough to warrant explanation of the early failure of the slow system on this basis. It is a well established fact that in the early stages of narcosis nerve. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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