Ramón y Cajal made this 
drawing of a pyramidal cell in 
the cerebral cortex stained by 
the Golgi method. At life size, 
the total height of this drawing 
would be about 1 millimeter. 
Only a part of the main axon (a) 
is shown: after giving off two 
branches (c), it might continue 
out of the picture for a distance 
of centimeters--even meters--
before ending in a dense bush 
of branches. The cell body is 
the small black blob.