NERVE COLLATERALS 



7 1 



are chiefly found in the nervous centers. The nerve fibers of the peripheral 

 nerves end in the muscles, glands, or special sensory organs, such as the 

 eye and ear, each by its own special type of ending. Here, however, some 



FIG. 93. Large Nerve Cells with Processes, from the Ventral Cornua of the Cord of 

 Man. X 350. On the cell at the right two short processes of the cell body are present, 

 one or the other of which may have been an axis-cylinder process (Deiters). A similar 

 process appears also on the cell at the left. 



FlG. 94. Multipolar Nerve Cell of the Cord of an Embryo Calf. 



analogy to the end-brush can also be discovered. As the peripheral nerve 

 fibers approach their terminations, they lose their medullary sheath, and 

 consist then merely of an axis-cylinder and primitive sheath. They may 

 even lose the latter, and only the axis-cylinder be left. Finally, the axis- 



