. Quain's elements of anatomy . ly partof the cartilage, and its broad patches of cells with the intermediatematrix are not to be inistaken (fig. 82). Near the margin of the articular cartilages connective tissue is pro-longed a certain way into them from the synovial membrane, and thecartilage-cells acquire processes and present transitions to the connective-tissue corpuscles of that membrane (fig. 83). The matrix of articular cartilage rarely, or perhaps never, becomesconverted into fibro-cartilage, nor is it prone to ossify like rib-cartilage. HYALINE CARTILAGE. 31 But a deposit of calcareo
. Quain's elements of anatomy . ly partof the cartilage, and its broad patches of cells with the intermediatematrix are not to be inistaken (fig. 82). Near the margin of the articular cartilages connective tissue is pro-longed a certain way into them from the synovial membrane, and thecartilage-cells acquire processes and present transitions to the connective-tissue corpuscles of that membrane (fig. 83). The matrix of articular cartilage rarely, or perhaps never, becomesconverted into fibro-cartilage, nor is it prone to ossify like rib-cartilage. HYALINE CARTILAGE. 31 But a deposit of calcareous granules may occur in the deeper parts ofthe articular cartilage near the bone, the deposit first shomng itself Fig. 82.—A THIN LAYER PEELED OFF FROJI THE Fig. 82. SURFACE OP THE CARTILAGE OF THE HEAD OFTHE HUMERUS, SHOWING FLATTENED GROUPS OF CELLS (Sbarpey). The shrunken cell-bodies are distinctly seen,but the limits of the capsular cavities where theyadjoin one another are but faintly 400 around the groups of cartilage cells (, d). This change may also happenat the symphyses. When the earthymatter is extracted by means of an acid,the tissue which remains has all thecharacters of cartilage. In the costal cartilages, the cells, which are of considerable size, arealso collected in groups, larger for the most part than those found inarticular cartilage. JSTear the exterior of the cartilage they are flattened,and lie parallel with the surface. As to those situated more inwardly,we can sometimes observe, in a transverse slice, that they form oblong-groups disposed in lines radiating to the circumference ; but thisarrangement is not constant, and they often appear quite irregular. Thecells, with the exception of those lying upon the surface, frequentlycontain diops of oil, the nucleus being often altogether concealed by thefat. The matrix is clear, except where fibres have been developedin it, in which parts it is opaque and yellowish. Su
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Keywords: ., boo, bookcentury1800, booksubjectanatomy, booksubjecthumananatomy
