HYALINE CARTILAGE. 



53 



cells, imbedded in an abundant matrix. .According to the 

 nature of the matrix, cartilage is of four kinds, hyaline carti- 



FIG. 21. 



Retiform tissue (Ribbert). 



lage, white fibro-cartilage, yellow elastic cartilage, and cellu- 

 lar cartilage. 



FIG. 22. 



Hyaline cartilage. 



Hyaline cartilage (Fig. 22) occurs in the costal cartilages, 

 the articular ends of bones, the nasal cartilaginous septum, 



