198 



THE NERVOUS SYSTEM 



3. Monticulus, which is further subdivided into the culmen and declive. The 

 former goes over laterally without line of demarcation into the anterior portion 

 of the quadrangular lobule, and the latter into the posterior portion of the same 

 lobule in the hemisphere. 



4. Folium vermis at the posterior extremity of the superior vermis. 



The rostral or dorsal surface of the hemisphere is subdivided by curved 

 transverse fissures, which are continued across the vermis, into the following 

 parts : 



1. The anterior part of the quadrangular lobule, continuous with the culmen 

 monticuli of the vermis. 



2. The posterior part of the quadrangular lobule, continuous with the declive 

 monticuli. 



Nodule of vermis Flocculus 



Inferior vermis 



Cerebellar hemisphere 

 inferior surface^--. 



Tonsil 



Bivenlral lobule 



^Inferior semi- 

 lunar lobule 



.- Horizontal cere- 

 bellar stdcus 



Superior semilunar 

 lobule 



Uvula of vermis j p os i er - lor N N Tuber of vermis 

 Pyramid of vermis ' cerebettar Folium of vermis 

 notch 



Fig. 139. Ventral view of the human cerebellum. (Sobotta-McMurrich.) 



3. The superior semilunar lobule, occupying a large crescentic area along the 

 dorsolateral border of the rostral surface. 



The inferior vermis (Fig. 139) is divided by transverse sulci into the follow- 

 ing lobules: 



1. The tuber vermis, next to the folium. 



2. The pyramis. 



3. The uvula. 



4. The nodulus. 



The caudal surface of the hemisphere presents the following subdivisions: 

 1. The inferior semilunar lobule, occupying a large part of this surface along 

 its dorsolateral border. 



