268 



M USCLE-TISSUE. 



after blending with the tendon or periosteum, is, as a rule, sup- 

 plied with a large number of plastids. Groups of plastids are 

 sometimes seen filling the triangular space above the point of 



-v/ 



FIG. 112. MUSCLE OF TONGUE OF MAN. CHROMIC ACID SPECIMEN. 



L, longitudinal muscle-fiber, broken off and exhibiting its structureless sheath the sar- 

 colemma, 8; N, medullated nerve-fiber, terminating in the motor hill, H ; T, transverse sec- 

 tion of a muscle-fiber ; P, the perimysium, holding capillary blood-vessels, C, and nerves, A Tl . 

 Magnified 500 diameters. 



the muscle-fiber, which often looks as if split into small spindles, 

 with sarcous elements irregularly distributed. (See Fig. 113.) 



Regarding the minute structure of striped muscle-fibers, there 

 is the widest divergence in the views of histologists. Still, the 



