148 THE SPINAL CORD AND CEREBELLUM 



remarked, the cerebellum becomes linked in a direct 

 manner with Clarke's column or the vesicular cylinder. 

 There is a second notable connection with the cuneate 

 and gracile nuclei, and through them with the 

 posterior columns of the cord.* Some fibres from 

 Burdach's column are described as reaching the 

 cerebellum through the restif orm body, t Many fibres 

 from the inferior peduncle pass to the inferior olive, 

 both on the same side and on the opposite side. J 

 This path is said to be a centrifugal one, and to be 

 composed chiefly of axons of Purkinje's cells, although 

 some fibres also carry centrifugal impulses. Further, 

 there is a connection with the superior olive, partly 

 through the trapezium and partly direct, a possible 

 link between the cerebellum and the vaso-motor 

 centre. By means of the so-called intermediate 

 bundle a centrifugal path is formed to the pyramidal 

 fibres, reaching far down the cord. Bechterew also 

 describes connections between the cerebellum by the 

 central portion of the inferior peduncle and the 

 nuclei of the auditory, glosso-pharyngeal, pneumo- 

 gastric, and fifth nerve ; whilst Foster says : ' Probably 

 a path to the cerebellum is present for impulses 

 flowing inwards along the sensory fibres of the cranial 

 nerves also — that is, of the cranial nerves generally.' 

 That the cerebellum is functionally connected with 

 the third, fourth,^and sixth nerves is apparent, since 

 when stimulation is applied it leads to movements of 



* Foster, loc. cit., p. 1208. 



t Bechterew, loc. cit, p. 387. J Ibid., p. 385. 



