CEREBRO-SPINAL SYSTEM OF THE VERTEBRATES. 27 



FIG. 25. 



Cerebro-spinal System of the highest Vertebrate Man. 



a, cerebrum, or principal brain, called the hemispheres; 6, cerebellum, or smaller 

 brain ;c, spinal cord giving ofiTits branches of nerves. 



The position of the brain has already been indicated. 



From the brain and spinal cord there are branches called 

 nerves, which extend to all parts of the body. 



The brain, spinal cord, and their branches, constitute 

 the Cerebro-spinal system the principal part of the whole 

 Nervous system which is much the same in its general 



