STRUCTURE OF THE NERVOUS SYSTEM 291 



bands of nerve fibers, between which are several small 

 masses of cell-bodies. The fibers connect with different 

 parts of the cerebellum and with parts above. 



Cb 



FIG. 132. Human brain viewed from below. C. Cerebrum. Cb. Cere- 

 bellum. At, Midbrain. P. Pons. B, Bulb. I-XII. Cranial nerves. 



The Bulb, or medulla oblongata, is, properly speaking, 

 an enlargement of the spinal cord within the cranial cav- 

 ity. It is somewhat triangular in shape, and lies im- 

 mediately below the cerebellum. It contains important 

 clusters of cell-bodies, as well as the nerve fibers that pas 

 from the spinal cord to the brain. 



