NERVE TISSUE. 



1 99 



chert, met with other conditions. They discovered the bi- 

 polar cells. 



The spinal nerves arise by a double root ; an anterior, 

 which passes over the spinal ganglion, and a posterior, which 

 passes through the ganglion. 



Frc. 176. — Multipolar ganglion cell from the anterior horn of the spinal cord of the ox, with the 

 axis cylinder process [it), and the branched protoplasma process, from which, at b, the finest 

 filamenis arise. 



As has been known since the days of Charles Bell, the 

 former consists of motory, the latter of sensory filaments. 



