THE SENSORY TRACTS. 



Sensori- 

 motor area. 



Lenticular 



nucleus. 



Optic thala- 



mus. 



Internal 



capsule. 



First 



temporal 



gyrus. 



Nucleus of 

 tegmentnm. 



Fifth nerve. 



Inferior 



peduncle of 



cerebellum. 



Eighth 



nerve. 



Ninth nerve. 

 Tenth nerve. 



Sensory decussatioi 

 (decussation of 

 fillet). 



Nucleus cuneatus. 



Nucleus gracilis. 



Postero-median 



column. 



Postero-lateral 



column. 



Direct cerebellar 



tract. 



Posterior nerve-root. 



Gowers' 

 tract. 



H 



FIG. 15. Diagram showing some of the paths by which a sensory impulse may 

 ascend from the spinal cord to the brain. (From Morris's Anatomy, after 

 Arthur Robinson.) The fibres from the nucleus gracilis and nucleus cuneatus 

 i tne opposite side of the cerebellum are not shown. 



[To face page 185, 



