XI 



THE BRAIN 



499 



which cover in the cerel)ro-spinal system, the brain pre- 

 sents the ap]jearance shown in the following figure. The 

 spinal cord (N) widens out into the bulb (M.Ob.) whose 



Fig. 159.— Side View of the Brain and Upper Part of the Spinal 



Cord in place— the Parts which cover the Cerebro-Spinal 



Centres being removed. 



C. C. the convoluted surface of the right cerebral hemisphere ; Cb. the 



cerebellum ; M.Ob, the medulla oblongata ; B. the bodies of the cervical 



vertebrae ; Up. their spines ; N. the spinal cord with the spinal nerves. 



upper end passes on into the large convoluted structure 

 (G'.CC'.) which is called the (right) cerebral hemisphere. 



