4O CELL DIFFERENTIATION AND THE ELEMENTARY TISSUES 



costal cartilages, the nasal cartilages, and those of the larynx with the ex- 

 ception of the epiglottis and cornicula laryngis, the cartilages of the trachea 

 and bronchi. 



FIG. 47. FIG. 48. 



FIG. 47. Hyaline Articular Cartilage (Human). The cell bodies entirely fill the spaces 

 in the matrix. X 340 diams. (Schafer.) 



FIG. 48. Fresh Cartilage from the Triton. (A. Rollett.) 



Structure. Like other cartilages, it is composed of cells embedded in a 

 matrix. The cells are irregular in shape, generally grouped together in 

 patches, figure 47. The patches are of various shapes and sizes and placed 



FIG. 49. Costal Cartilage from an Adult Dog, showing the Fat Globules in the Cartilage 



Cells. (Cadiat.) 



at unequal distances apart. They generally appear flattened near the free 

 surface of the mass of cartilage, and more or less perpendicular to the surface 

 in the more deeply seated portions. 



