HYALINE CARTILAGE 



39 



the human body where it invests the articular ends of bones, and forms the 

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



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



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

 and bronchi. 



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 

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





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



(Cadiat.) 



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

 in the more deeply seated portions. 



The intercellular substance of hyaline cartilage, when viewed fresh or 

 after ordinary fixation, appears homogeneous. However, when subjected 

 to special methods, the seemingly homogeneous intercellular substance can 



