710 



THE CEREBELLUM 



bellum into relation with the cortex of the frontal and parietal lobes of the opposite 

 side. The middle peduncle also embraces efferent fibers which are derived from 

 the cells of Purkinje and, after their decussation in the pons, descend in the lateral 

 funiculus of the cord. They eventually terminate around the motor cells of the 

 anterior horns. 



corpus 

 restiforme 



nucfosc. 



grocilis ef 

 cuneafus 



Tr olivo<ereb. 

 Tr.spino- 

 cereb. dors. 



(Flechs 



brachium" 

 conjunctivum 



"r Tecto-cereb. 

 tr. ponto-cereb. 

 mesencephalon 



Tr spino-olivans' 

 tr cortico-spinalis^ 



centra! 



tegmental 



tract. 



Tr. corTico- 

 ponTdi's 



Tr spino - cereb ventr. (Cowers) 



FIG. 357. DIAGRAM OF THE CHIEF AFFERENT TRACTS LEADING INTO THE CEREBELLUM. 



(Hfrriek.) 



The inferior peduncle is composed principally of afferent fibers which take their 

 origin either in the spinal cord or in the bulb. The former constitute the continua- 

 tion of the direct cerebellar tract and ascend through the corpus restiforme into the 

 vermis of the cerebellum. 1 We have seen that this tract includes the axons of the 



nuc. dentaTus 



roof nuclei 

 corpus resTiforme 



irachium ponTis , 



brachiurn 



conjunaivum 



tr. cereb.-TegmenTalis 

 mesencephali 



mesencephalon* 

 ^ Tr.rubro.thaL 



oliva inferior- 



pons 







'Tr. cerebello-tegmenTalis bulbi, 



Tr. cerebello- 

 tegmenTalis 

 ponTis 



FIG. 357o. DIAGRAM OF THE CHIEF EFFERENT TRACTS LEADING OUT OF THE CEREBELLUM. 



(Herrick.) 



cells of Clark's column and collaterals from the posterior roots of the cord. The 

 medullary fibers form the continuation of the vestibular division of the auditory 

 nerve and connect the nuclei of Deiters and Bechterew with the nucleus fastiguus 



1 Thomas, Le Cervelet, Paris, 1897. 



