CH. VII.] 



END-PLATES. 



103 



The plexus of Auerbach (fig. 128) between the muscular coats of the 

 intestine is a typical case. Groups of nerve-cells will be noticed at 

 the junctions of the fine nervous cords. From these plexuses fine 



Fig. 125. From a preparation of the nerve-termination in the muscular 

 fibres of a snake, a, End-plate seen only broad surfaced, b, End- 

 plate seen as narrow surface. (Lingard and Klein.) 



branches pass off and bifurcate at frequent intervals, until at last 

 ultimate fibrillse are reached. These subdivisions of the axis 

 cylinders do not anastomose with one another, but they come into 





Fig. 126. Termination of medullated 

 nerve-fibres in tendon near the mus- 

 cular insertion. (Oolgi.) 



Fig. 127. One of the reticulated end-platen 

 of fig. 126, more highly magnified. . 

 medullated nerve-fibre; b, reticulated 

 end-plates . ( Oolgi . ) 



close relationship with the involuntary muscular fibres ; though some 



histologists have stated that they end in the nuclei of the muscular 



fibres, it is now believed that they do not pass into their interior. 



The terminations of sensory nerves are in some cases plexuses, 



