Chap. VI.] 



CARTILAGE. 



49 



again in layers. The ground substance of this carti- 

 lage is said (?) to 

 yield chondrin and 

 not glutin. Be- 

 tween the strata of 

 the fibrous bundles 

 are rows of more or 

 less flattened oval 

 protoplasmic nu- 

 cleated cells, each 

 invested in a deli- 

 cate capsule(Fig. 31). 

 They are less flat- 

 tened than the cells 

 of tendon, and the 

 capsule distinguishes 

 the two. Where fibro- 

 cartilage passes into 

 tendinous tissue, 



the two kinds of cells pass insensibly into one another. 

 .-.^ssEss^^^as^j^. 61. (3) Yellow, or 



elastic cartilage. 

 This variety is also called 

 reticular ; it occurs in the 

 epiglottis, in the ear-lobe, 

 in the Eustachian tube, in 

 the cartilages of Wris- 

 berg and Santorini in the 

 larynx. In the early 

 stage this kind is hyaline. 

 Gradually numbers of 

 elastic fibrils make their 

 appearance, growing into 







-?. 



Fig. 31. Fibro-Cartilage of an Interver- 

 tebral Ligament. 



Showing the bundles of fibrous tissue and rowa 

 of cartilage cells. (Atlas.) 





Fig. 32. From a Section through 

 the Epiglottis. 



<t, Perichondrinm ; ft, networks of 

 elastic fibrils surrounding the carti- 

 lage cells. (Atlas.) 



tion, and branching and 

 E 



the cartilage matrix from 



the perichondrium in a 



more or less vertical direc- 



anastomosing with one 



