Manual of pathology : including bacteriology, the technic of postmortems, and methods of pathologic research . one-marrow, although similar evidencesf)f cell activity are to be rccognizefl in the endo-thelium of the capillaries. This forms the ger-y minal or reparative tissue, certain cells of which ^ () arise from the genetic layer of the ^ periosteum and from the medullary cavity and produce a matrix of temporary cartilage; fromthe same tissues are produced other cells, thefunction of which, later, is the completion of os-seous formation; these are called ostcobhists. Themas
Manual of pathology : including bacteriology, the technic of postmortems, and methods of pathologic research . one-marrow, although similar evidencesf)f cell activity are to be rccognizefl in the endo-thelium of the capillaries. This forms the ger-y minal or reparative tissue, certain cells of which ^ () arise from the genetic layer of the ^ periosteum and from the medullary cavity and produce a matrix of temporary cartilage; fromthe same tissues are produced other cells, thefunction of which, later, is the completion of os-seous formation; these are called ostcobhists. Themass of new tissue is known as chondroid or os-teoid tissue, and constitutes what clinicians callcallus. Structurally, the callus is more or lessuniform, but its position has led to a descri])tionof three different parts: The external, circumfer-ential, encircling, or ensheathing callus is thatsurrounding the bone; the internal, medullar), If Fig. 432.—FRAfTI-RK OF THK Fkmcr, Siiuwino Over-lapping OF THK FrACMKNTSWITH Rotatory UispI-ACE-MKNT or the Frac-MKNT, AND .\TTKMPTEDI NIoN THIS
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