122 



ON THE ELEMENTARY PARTS OF THE HUMAN FABRIC. 



varies from about l-4000th, to l-24,000th of an inch; in the ligamenta sub- 

 flava, it is usually about l-7500th. There is less tendency to spontaneous 



Fig. 23. 



. 24. 



White Fibrous Tissue, from Ligament. 

 Magnified 65 diameters. 



[Fig. 25. 



Yellow Fibrous Tissue, from Ligamentum 

 Nuchae of Calf. Magnified 65 diameters. 



[Fig. 26. 



The two elements of Areolar tissue, in their natural rela- 

 tions to one another; 1, the white fibrous element, with 

 cell-nuclei, 9, sparingly visible in it ; 2, the yellow fibrous 

 element, showing the branching or anastomosing charac- 

 ler of its fibrillce; 3, fibrillae of the yellow element, far 

 finer than the rest, but having a similar curly character, 

 S nucleolated cell-nuclei, often seen apparently loose. 

 From the areolar tissue under the pectoral muscle, mag- 

 nified 320 diameters.] 



Development of the Areolar tissue, 

 (white fibrous element:) 4, nucleated 

 cells, of a rounded form ; 5, 6, 7, the 

 same, elongated in different degrees, 

 and branching. At 7, the elongated ex- 

 tremities have joined others, and are 

 alri-ady assuming a distinctly fibrous 

 character. (After Schwann.)] 



decomposition in this tissue, than in almost any other part of the fabric, at 

 lenst, of its soft and moist portions; it requires but little renovation, therefore, 

 in the living body ; and is but very sparingly supplied with blood-vessels. 



