Volume 1

Manual of human and comparative histology / edited by S. Stricker ; assisted by J. Arnold [and others] ; translated by Henry Power.

  • New Sydenham Society
Date:
1870-73
Catalogue details

Licence: Public Domain Mark

Credit: Manual of human and comparative histology / edited by S. Stricker ; assisted by J. Arnold [and others] ; translated by Henry Power. Source: Wellcome Collection.

Provider: This material has been provided by Royal College of Physicians, London. The original may be consulted at Royal College of Physicians, London.

    122/664 page 64
    which is again dissolved on adding an excess of the acid (mucous tissue, Virchow) * The moii^hological constituents of the tissue consist of delicate and soft cell structures containing nuclei, from which smooth trabeculae are given off in various direc- tions, that branch and anastomose with one another. Or there may occur in place of the cell plexus a delicate network of smooth non-nucleated trabeculae, which present enlarge- ments at the ]3oints where they intercommunicate. A larger or smaller number of amoeboid cells are discoverable in the amorphous substance lying between the fully developed cells. The tissue of the jelly-like substance of the umbilical cord described by Wharton, as it appears in the earlier periods of the development of the embryo, is to be reckoned amongst these forms. At a later period, especially in preserved specimens, a not inconsiderable quantity of the original tissue may be found, associated sometimes with fasciculi of fibrils, agreeing with those that, as we shall subsequently see, compose the fibrillse of connective tissue.-f* The substance which occupies the Sinus rhomboidalis of birds is usually regarded as belonging to the mucous or gelatinous fonn of connective tissue; and a similar material is frequently met with in fishes, especially in the electric and pseud-electric organs; in the vicinity of the mucous canals of the Stui'geon and Plagiostomata, in various parts of the body in the Carp, Tench, Dace, and Eel, and beneath the sclerotic.^ The vitreous humour of the eye may also be regarded as an example of it. The presence of gelatinous tissue has also been demonstrated in the Invertebrata, Heteropods, Medusae, etc.§ * Wiirzhm'ger Verliandlungen, Band ii., p. 160, Cellular Pathologie. f Henle, Jahreshcricht fiir 1858, p. 61, et seq. Weismann, Zeitschrift fiir Rationelle lledicin, Bandxi., 3 E,., p. 140. Beale, Structure of the Simj)le Tissues. Koster, Ueher die feinere Structure der Menschlich. Nabclschnur, ( On the finer structure of the Umbilical Cord,) Inaug. dissert. Wiirz- burg, 1868, pp. 16 and 17. X Leydig, Muller's Archiv, 1854, p, 316. § Gcgenbaur, Ilonograjihte der Pterojmden uinl Heteropodcn. Leipzig, 1855. Max Schultze, Muller's Archiv, 1856, p. 314. Leydig, Verglcichende Histologic. Kolliker, Zeitschrift fUr wissenschaftliche Zoologic, Band iv., p. 363; and Wiirzhurger Naturw. Zeitschrift, Baud v., p. 232, 1864.
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