CLASSIFICATION 



119 



its under surface to enclose the secondary bundles of 

 fibers. The primary bundles receive from the sheath 

 surrounding the secondary bundles a sheath called 

 the perimysium. The latter sends fibers that pass 

 between the individual fibers of the primary bundle, 

 called the endomysium. 



FIG. 61 



FIG. 62 



Fragment of a fiber 

 of cross-striped mus- 

 cular tissue, showing 

 fibrils separated at 

 one end by teasing. 

 (Gerrish.) 



Sheaths of muscular tissue in cross-section- 

 The muscular tissue does not appear, but is rep. 

 resented by the spaces between the partitions. 

 Outside of the entire muscle is epimysium; 

 between the bundles is perimysium; between the 

 fibers is endomysium the last shown in two areas 

 at the right. Diagrammatic. (F. H. G.) 



The bloodvessels to muscle tissue pierce the epi- 

 mysium and give off branches which follow the larger 

 septa between the bundles until the perimysium is 

 reached and smaller vessels form, which pierce the 

 perimysium to form longitudinal capillaries; the latter 

 anastomose freely with each other. 



The lymphatics are not numerous and are sometimes 

 wanting. The nerves follow the bloodvessels (see 

 nerve system nerve endings (page 339). 



Voluntary striated muscles are found attached to 



