cxxii 



MUSCULAR TISSUE. 



connection differs when the muscular fibres are continuous in a direct line 

 with those of the tendon from that which is observed when the former join 

 the latter at a more or less acute angle. In the first case, the two are 

 directly continuous, the muscular fibre being distinguishable from that of 

 the fibrous tissue by its striation alone. In the second case, the muscular 

 fibres terminate in conical processes, which are received in corresponding 



Fig. LXVI. 



Fig. LXVII. 





Fig. LXVI. FROG'S MUSCULAR FIBRE, SHOWING INTERSTITIAL GRANULES, MAGNIFIED 

 350 DIAM. (from Kolliker). 



Fig. LXYII. A BRANCHED MUSCULAR FIBRE FROM THE FROG'S TONGUE, MAGNIFIED 

 350 DIAM. (from Kolliker). 



depressions of the tendinous structure, to which they cling ; the connective 

 tissue of the one being continuous with that of the other. Weismann, who 

 adopts this view on later observations of his own, states that the sarco- 

 lemma surrounds the ends of the fibres, which are not continuous with but 

 rather, as it were, cemented to the tendon. Mr. Ellis, on the other hand, 

 describes the connection of striated muscle with tendon as taking place in 

 all cases in the following manner. When a muscular fibre is about to end 

 in a tendon, its component fibrils are collected into bundles of different 

 lengths and sizes like the roots of a tree. Around each bundle tendinous 

 tissue is collected, forming a sheath which appears gradually to cease as it is 

 continued backwards on the undivided fibre. The muscular fibrils of a 

 bundle in approaching the tendon gradually cease, each having probably its 

 own tendinous thread to fix it. The central bundles of fibrils reach further 

 than the circumferential, and thus, when the latter are broken off by 

 attempts made to detach a fibre from its neighbours, the fibre appears to 

 have a pointed ending. In this case also Weismann maintains that the 

 sarcolemina intervenes between the muscular substance and the tendon. 



