i68 



THE TISSUES. 



ending depends, therefore, on the complexity of this end-brush and 

 on its relation to the other tissue elements which take part in the 

 formation of the sensory nerve-endings. Bearing this in mind, the 



Fig- 135- Termination of sensory nerve-fibers in the mucosa and epithelium of the ure- 

 thra of cat; methylene-blue preparation (Huber, " Jour. Comp. Neurol.," vol. x). 



following classification of such nerve-endings can be made : 



i. Free Sensory Nerve-endings. In these the telodendrion is not 



