<prompt> Structures not passing through inferior cerebellar pedunclePontocerebellarCuneocerebellarAnterior spinocerebellarPosterior spinocerebellar  <response>: The fibres entering or leaving the cerebellum are grouped to form three peduncles which connect the cerebellum to the midbrain,the pons and the medulla. CONSTITUENTS OF THE CEREBELLAR PENDUNCLE Penducle Afferent tracts Efferent tracts A Superior cerebellar peduncle 1 Anterior spinocerebellar 2 Tectocerebellar 1Cerebellorubral 2 Dentatothalamic 3 Dentatoolivary 4 Fastigioreticular B Middle cerebellar peduncle Pontocerebellar C Inferior cerebellar peduncle 1 Posterior spinocerebellar 2 Cuneocerebellar 3 Parolivocerebellar 4 Olivocerebellar 5 Reticulocerebellar 6 Vestibulocerebellar 7 Anterior external arcuate fibres 8 Straie medullares 9 Trigeminocerebelar 1 Cerebellovestibular 2 Cerebelloolivary 3 Cerebelloreticular REF: B D Chaurasias human anatomy,Vol:3, Pg:392 