52 



PRACTICAL MICROSCOPY. 



nective tissue, stained, the nuclei of the corpuscles constitute a 

 prominent feature of the specimen under the microscope. 



Having obtained a piece of tendon from a recently killed bullock, 

 tease a fragment on a slide in a few drops of water. Select a portion 

 which splits easily and separate the fibrils as much as possible. 

 Cover and examine H. 



FIG, 35. CONNECTIVE TISSUE. 



A. Teased fibres from a tendon. 



C. Fibrillfie. 



B. New connective tissue from a cirrhotic liver. 



D. Elongate cells in last showing mode of formation of fibrillae from cell elements, x 400. 



Fine, wavy fibres are seen composing the fasciculae. If the dissec- 

 tion has been sufficiently minute, you may succeed in demonstrating 

 ultimate fibrillae. These are best made out, as at in Fig. 35, 

 where the parts of a bundle have been separated for some distance, 

 leaving the finer elements stretching across the interval. 



B in Fig. 35 shows recently formed connective tissue from the liver, 

 where this structure had so increased as to largely obliterate the 

 parenchyma of the organ. 



YELLOW ELASTIC TISSUE. 



This tissue consists of coarse shining fibres (averaging one-three 

 thousandth of an in.) which frequently branch and anastomose. They 

 are highly elastic. Under the microscope the fibres are colorless ; 

 but when aggregated, as in a ligament, the mass is yellow. 



