76 



LECTURES ON THE CENTRAL NERVOUS SYSTEM. 



On their passage downward, the fibres of the corona radiata 

 enter into important relations with the corpus striatum and the 

 optic thalamus. 



They naturally converge, and so reach the space outside 

 the thalamus. The fibres from the anterior portion of the brain 

 must, in order to reach this point, pass through the corpus 



FIG. 44. 



Horizontal section through the brain, trending downward on each side. 



Btilken, Corpus callosum. Opticus Strahlung, Optic radiation. 



striatum. This is made clear in the accompanying horizontal 

 section through the cerebrum. 



This section is made about a finger's breadth lower down 

 than the one shown in Fig. 19. You must understand that the 

 two hemispheres have been partly removed, and that their coronal 

 fibres pass from above downward through the knee-shaped white 

 line of the inner capsule. That portion of the capsule which 

 comes from the frontal and occipital lobes lies partly in the plane 



