CARTILAGINOUS SYSTEM. 197 



A. Those in the sutures of the head, and those in the 

 bones of the face. 



Q. In what respect do the cartilages in the moveable and 

 immoveable joints differ? 



#. In the tendency of the cartilages of the immoveable 

 joints to ossification, particularly those of the sutures of 

 the head. 



Organization of the Cartilaginous System. 



Q. What is the peculiar organization of cartilage ? 



/#. It is an intensely dense interlacing of fibres, longi- 

 tudinal and transverse. 



Q. Is cartilage disposed to putrescency? 



A. It resists putrefaction longer than any part, except 

 bones. 



Q. What change takes place in disease ? 



Jl. It becomes in some instances, as in hip disease, 

 soft, lardaceous, and vascular. Sometimes it is even os- 

 seous, and then medullary cavities are formed and fluid 

 deposited. 



Q. Bichat mentions another remarkable change of the 

 cartilaginous tissue in disease, what is it? 



#. In two instances he saw the cartilages of the hip 

 and thigh bones converted into a substance like ivory. 



Q. What is the common organization of cartilage? 



#. Cellular substance, and in health white fluids, exha- 

 lents and absorbents. In disease red fluids are conveyed; 

 in jaundice the cartilages become very yellow. No nerves 

 have been found in cartilages. 



Q. What proves the existence of cellular texture in 

 cartilage? 



