. Elements of histology. Histology. 8 Elements of Histology. [Chap. I. process of the karyokinesis is represented in the ad- joining figure, 5, and it consists of the following phases: (a) The nuclear network become very pronounced, while the nuclear membrane disappears, and the fibrils of the nuclear network becomes twisted and bent into a more or less dense convolution; at the same time the nucleus, as a whole, is considerably enlarged, (b) The fibrils unravel into loops, arranged. G H Fig. 5.—Karyokinesis. a, Ordinary nucleus of a columnar epithelial cell; b, c, the same nucleus in the stag


. Elements of histology. Histology. 8 Elements of Histology. [Chap. I. process of the karyokinesis is represented in the ad- joining figure, 5, and it consists of the following phases: (a) The nuclear network become very pronounced, while the nuclear membrane disappears, and the fibrils of the nuclear network becomes twisted and bent into a more or less dense convolution; at the same time the nucleus, as a whole, is considerably enlarged, (b) The fibrils unravel into loops, arranged. G H Fig. 5.—Karyokinesis. a, Ordinary nucleus of a columnar epithelial cell; b, c, the same nucleus in the stage of convolution; r>, the wreath, or rosette form ; k, the aster, or single star; f, a nuclear spindle from the Descemet's endothelium of the frog's cornea; 6, h, i, diaster; k, two daughter nuclei. around the centre as a wreath or rosette, (c) The peripheral points of the loops become broken, and we obtain a star-shaped figure of single loops—the aster, (d) The loops separate into two groups or new centres: this is the diaster, or double star, (e) The two groups of threads become further apart, as if attracted by opposite poles; but the two groups remain still connected with one another by fine pale threads. These latter differ from the others in not staining with certain dyes, and representing the in-. 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 Klein, E. (Edward), 1844-1925. Philadelphia : H. C. Lea's Son


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