. Elements of histology. Histology. Fig. ISO.—Enamel Prisms. (Kdllikc,:) A, In longitiuliual view ; eross-section. into bundles, which are not quite parallel, but more or Jess slightly overlap one another. On a longitudinal section through a tooth, the appearance of alternate light and dark stripes in the enamel is thus produced. Besides this there are seen in the enamel dark hori- zontal curved lines, the brown parallel stripes of Retzius, probably due to inequalities in the density of the enamel prisms produced by the successive forma- tion of layers of the enamel. The enamel consists o
. Elements of histology. Histology. Fig. ISO.—Enamel Prisms. (Kdllikc,:) A, In longitiuliual view ; eross-section. into bundles, which are not quite parallel, but more or Jess slightly overlap one another. On a longitudinal section through a tooth, the appearance of alternate light and dark stripes in the enamel is thus produced. Besides this there are seen in the enamel dark hori- zontal curved lines, the brown parallel stripes of Retzius, probably due to inequalities in the density of the enamel prisms produced by the successive forma- tion of layers of the enamel. The enamel consists of lime salts—phosphate, carbonate, and fluoride of calcium—with corresponding magnesium salts. In young teeth the free surface of the enamel is covered with a delicate cuticle (the cuticle of Nasmyth), a single layer of non-nucleated scales. In adult teeth this cuticle is wanting, having been rubbed 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; Edkins, John Sydney, b. 1865. Philadelphia : Lea Brothers
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherphiladelphialeabro
