NERVE-CELLS 



221 



FIG. 140. DIAGRAM OP THE LOWER MOTOR NEURONE. (BARKER.) 



D. A motor-cell from the anterior horn of the spinal cord, with its protoplasmic 



processes. 



Ax. Axis cylinder process. N. of N. Nucleus of neurilemma. 



S. F. Collaterals. Tel. The ending, in striped muscle-fiber, M'. 



M. Medullary sheath. N. The nucleus, and N' nucleolus of the 



N. R. Node of Ranvier. ganglion-cell. 



