Introduction 



FIG. 7. White Fibrous Tissue. 

 (Highly magnified.) 



The cells are called connective-tissue corpuscles, cartilage 

 cells, and bone corpuscles, according to the type of the 



tissues in which they occur. 

 The fibrous connective 

 tissues are composed of a 

 matrix in which are imbedded 

 the cells and two kinds of 

 connective-tissue fibers, white 

 and yellow or elastic. As the 

 character of connective tis- 

 sue depends largely on the 

 arrangement of these fibers, 

 they are worthy of special mention. 



25. Connective Tissue with White Fibers. The white 

 fibers of connective tissue consist of bundles of very deli- 

 cate fibrils bound together by a small amount of cement 

 substance into bundles varying in size. Between the 

 fibrils protoplasmic masses (connective-tissue corpuscles) 

 are found. These fibers may be so 



interwoven as to form a sheet, as 

 in the periosteum of the bone, the 

 fasciae around muscles, and the cap- 

 sules of organs ; or they may be 

 aggregated into bundles and form 

 rope-like bands, as in the ligaments 

 of joints and the tendons of muscles. 



26. Connective Tissue with Yellow 

 or Elastic Fibers. The yellow or 

 elastic fibers of connective tissue are 



much stronger and coarser than those of the white. They 

 are yellowish, tend to coil up like a broken spring, and are 

 highly elastic. It is these fibers which give elasticity to 

 the skin and to the coats of the arteries. Their typical 



FIG. 8. Yellow Elastic 



Tissue. 

 (Highly magnified.) 



