. The anatomical record. Anatomy; Anatomy. 406 The Anatomical Eecord. Let us now observe how the nerve tissue under cultivation in the lymph behaves. It must be borne in mind that when this is taken from the embryo it consists entirely of rounded cells without any signs of differentiation into fibers. Examined after a day or two of cultivation, fibres are found in a considerable number of cases extending out from the mass of tissue into the lymph clot. An early stage of this develop-. 0.\ Tfs -r Fig. 21.—Two views, taken tweuty-five minutes apart, of the same nerve fiber growing from a group o
. The anatomical record. Anatomy; Anatomy. 406 The Anatomical Eecord. Let us now observe how the nerve tissue under cultivation in the lymph behaves. It must be borne in mind that when this is taken from the embryo it consists entirely of rounded cells without any signs of differentiation into fibers. Examined after a day or two of cultivation, fibres are found in a considerable number of cases extending out from the mass of tissue into the lymph clot. An early stage of this develop-. 0.\ Tfs -r Fig. 21.—Two views, taken tweuty-five minutes apart, of the same nerve fiber growing from a group of embryonic spinal cord cells into the lymph. ment is shown in Fig. 20, which represents a-cell that has become de- tached from the main mass of tissue. This cell is still gorged with food yolk, but at one ]3ole it has sent out a hyaline protoplasmic process, -which was observed to undergo distinct changes in form. Fig. 21 shows another case. Here the fiber proceeds from a mass of cells and its own. 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 Bardeen, Charles Russell, 1871-1935, ed; Boyden, Edward A. (Edward Allen), 1886-1976; Bremer, John Lewis, 1874- ed; Hardesty, Irving, b. 1866, ed; American Association of Anatomists; American Society of Zoologists; Wistar Institute of Anatomy and Biology. [New York, etc. ] A. R. Liss [etc. ]
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