32 



THE CONNECTIVE TISSUES 



[CII. IV. 



lymph. The Soft Kandlchen enable the lymph to penetrate to every 

 part of the areolar tissue. 



Fibrous Tissue. 



This is a kind of connective tissue in which the white fibres pre- 

 dominate ; it is found in tendons and ligaments, in the periosteum, 



dura mater, true skin, the sclerotic 

 coat of the eye, and in the thicker 

 fasciae and aponeuroses of muscle. 

 The tissue is one of great 

 strength; this is conferred upon 

 it by the arrangement of the 

 fibres, the bundles of which run 

 parallel, union here, as elsewhere, 

 giving strength. The cells in 

 tendons (fig. 43) are forced to 

 take up a similar orderly arrange- 

 ment, and are arranged in long 

 chains in the ground-substance 

 separating the bundles of fibres, 

 and are more or less regularly 

 quadrilateral with large round 

 nuclei containing nucleoli, which 

 are generally placed so as to be 

 nearly contiguous in two cells. 

 The cell spaces in which the cells lie are in arrangement like the 

 cells ; they can be brought into relief by staining with silver nitrate 

 (see fig. 44). 



Fio. 43. Caudal tendon of young rat, showing the 

 arrangement, form, and structure of the tendon 

 cells. The bundles of white fibres between 

 which they lie have been rendered transparent 

 and indistinct by the application of acetic 

 acid, x 300. (Klein.) 



Fio. 44. Cell spaces of tendon, brought into view by treatment with silver nitrate. 

 (After Schafer.) 



Elastic Tissue. 



This is a form of connective tissue in which the yellow or elastic 

 fibres predominate. The yellow fibres are larger than those found in 

 areolar tissue (see fig. 45), and are bound into bundles by areolar 



