300 



THE NERVOUS SYSTEM 



uncinate and inferior longitudinal fascicles are formed by the shorter and more 

 superficial fibers of a larger and longer tract, the inferior occipitof rental fasciculus, 



Superior longitudinal fasciculus 



Uncinate fasciculus '' 



Inferior occipitofrontal fasciculus 



Fig. 228. Some of the long association bundles projected upon the lateral aspect of the cerebral 



hemisphere. 



which unites the cortex of the frontal and occipital lobes (Figs. 227, 228). Along 

 with the uncinate fasciculus it may easily be exposed by dissection, as it courses 

 along the ventrolateral border of the lentiform nucleus. 



Cingulum 



Fas. occipitofrontalis sup. 



Corpus callosum 



Fas. longitudinalis sup. 



Caudate nucleus 



Internal capsule 



Lentiform nucleus 

 Insula 



Fas. occipitofrontalis inf. 



Fas. uncinatus 



Amygdaloid nucleus 



Fig. 229. Frontal section of the cerebral hemisphere through the anterior commissure showing the 

 location of the long association bundles. 



The superior longitudinal fasciculus (fasciculus arcuatus) is a bundle of as- 

 sociation fibers which serves to connect many parts of the cortex on the lateral 



