The cerebellum is attached to the brain stem through three pairs of cerebellar peduncles or fibre trunks - the superior cerebellar peduncle,the middle cerebellar peduncle and the inferior cerebellar peduncle. These structures contain all the fibres entering the cerebellum (cerebellar afferents ) and all the fibres leaving the cerebellum (cerebellar efferents) thus:

	a) Superior	Middle	Inferior
	dentatothalamic dentatorubral fastigioreticular fastigiovestibular Ventral spinocerebellar	Pontocerebellar	Dorsal spinocerebellar Rostral spinocerebellar Cuneocerebellar Olivocerebellar tracts Reticulocerebellar Cerebelloreticular Vestibulocerebellar fibres Cerebellovestibular fibres