38 CONNECTIVE TISSUE. 



tids), and in the stylohyoid, thyrohyoid, and cricothyroid liga- 

 ments. 



Fibrous Tissue (Fig. 29). By reason of its color this kind 

 of tissue is also called white fibrous tissue. It is made up of 

 white and glistening non-elastic fibers, which give to it great 

 strength. It is widely distributed, occurring in ligaments, tendons, 

 muscular fascia, periosteum, perichondrium, pericardium, and dura 

 mater, sclerotic coat of the eye, tunica albuginea of the testis, 

 capsule of the kidney, epineurium, and the sheaths of the corpora 

 cavernosa and corpus spongiosum of the penis. In the ligaments 

 and tendons the fibers are arranged in bundles, between which are 

 many flat connective-tissue corpuscles, the tendon-cells (Fig. 29). 



Matrix. i. 



Cartilage-, 

 cell. 



m 



FIG. 30. Hyaline cartilage (costal cartilage of the ox) ; alcohol preparation ; 

 X 300 (Bohm and Davidoff ). The cells are inclosed in their capsules. In the figure 

 a are represented frequent but by no means characteristic radiate structures. 



Jelly-like Connective Tissue. This consists of a soft 

 matrix, with a few spheroidal cells and a few fibers. It is found 

 in the embryo, as in the jelly of Wharton in the umbilical cord. 

 The only structure in the adult made of this material is the 

 vitreous humor of the eye. It consists chemically of water and 

 mucinogen, with a small amount of proteid and salts. 



Cartilage. This tissue exists in the human body in several 

 varieties ; a. Hyaline ; 6. White fibrous : c. Yellow elastic ; d. 

 Cellular. 



Hyaline Cartilage (Fig. 30). This variety is sometimes called 

 true cartilage. It varies in structure according to the location in 

 which it occurs, and by reason of this its location receives different 

 names : articular and costal. 



