THE LOCATION OF THE NERVES 
467 
places in the brain and spinal cord. A student of the nerves 
can tell the route which the stimulus arising from feeling 
a pencil must travel be¬ 
fore reaching that part 
of the brain where it is 
interpreted as a pencil; 
or the route over which 
the stimulus arising from 
tasting candy must pass 
before it is known to be 
that of candy. When 
we see the pencil or the 
candy, the route over 
which the sight stimuli 
of these two objects 
travel is not the same 
as that of the feeling of 
the pencil or tasting the 
candy. The nerve cells 
which interpret the 
stimulus arising from 
feeling the pencil or from 
tasting the candy or see¬ 
ing the pencil and the 
candy are probably not 
the same. We may say, 
therefore, that the spinal 
cord and brain are made 
up of many special nerve 
pathways which end in 
nerve cells that interpret 
stimuli. 
The nerves which con¬ 
nect the central nervous system, that is, brain and spinal 
cord, with all parts of the body, consist of many long nerve 
Figure 412. — Nervous System of Man. 
