426 Anatomy Applied to Medicine and Surgery. 



jority of them) in the ventral portion of the latter struc- 

 ture, and to end in arborizations around the cells of the 

 ventral horn of the spinal cord, from which cells, the 

 axis cylinder processes of the lower motor neurones pass 

 out to the muscles on the same side of the cord, but on the 

 side of the body opposite to the cerebral motor area. Im- 



( Fibres j rom pre frontal 

 TL r eg/on to ports and 



to 



(Fig.1'2.) 

 Diagram illustrating the relative position of the Tracts in the Internal Capsule. 



mediately behind these motor fibres of the internal cap- 

 sule, i.e., in the posterior third of the posterior limb of the 

 capsule, is the sensory tract. This tract, beginning in the 

 lower sensory neurones, enters the cord and passes up- 



