Advanced: routes into the cerebellum from the spinal cord.

• There are two spinocerebellar tracts: the dorsal and ventral; the dorsal is uncrossed and the ventral is initially crossed but recrosses to the ipsilateral side within the cerebellum.
  
• The dorsal tract reaches the cerebellum through the inferior cerebellar peduncle, and the ventral enters it through the superior cerebellar peduncle.
  
• The ventral spinocerebellar tract also gives of collaterals to the contralateral cord, providing a route to the contralateral side of the cerebellum.
• Information from the cord also reaches the cerebellum via the inferior olivary nucleus in the olive (spino-olivary tract), shown here, and from the cuneate tract (through the accessory cuneate nucleus in the medulla, not shown here; see cerebellum).