BASAL GANGLIA 



5*3 



Begin by cutting off the portion anterior to the head of the caudate nucleus, 

 and thef! proceed posteriorly until the posterior part of the thalamus 

 is reached. One of the sections should be planned to pass through 

 the anterior commissure. 



Nucleus Caudatus. This nucleus has already been partly 

 examined in connection with the lateral ventricle, into the 



Claustrum 



V^w / 



Q^k 



Putamen 



Insula 



Genu of corpus callosum ' 



Anterior horn of lateral ventricle T 



Head of caudate nucleus f 



Anterior limb of internal capsule 

 Cavum septi pellucidi 



Genu of internal capsule 



Globus pallidus 



Fasciculus thalamo-mamillaris 



Posterior limb of internal capsule 



Thalamus - 

 Retrolenticular part 

 of internal capsule 

 Tail of caudate nucleus 

 Hippocampus 

 Splenium ' 



Posterior horn of lateral ventricle - 

 Band of Vicq d'Azyr 



Calcarine fissure - 



Tapetum 



Optic radiation 



Inferior longitudinal bundle 



FIG. 213. Horizontal section through the Right Cerebral Hemisphere at the 

 level of the widest part of the lentiform nucleus. 



cavity of which it bulges. It is a piriform highly arched 

 mass of grey matter, which presents a thick swollen head or 

 anterior extremity, and a long attenuated tail. The head 

 projects into the anterior horn of the lateral ventricle, whilst its 

 narrower part is prolonged laterally and posteriorly on the 

 floor of the central part of the ventricle, where it is separated 

 from the thalamus by the stria terminalis. Finally, its tail 

 turns downwards and then anteriorly into the inferior horn 

 VOL. II 33 



