part of part of middle cerebellar peduncle white matter of cerebellum tract of brain pontocerebellar tract Wikipedia:Pontocerebellar_fibers pontine crossing tract DHBA:12769 HBA:265505470 pontocerebellar fibers neuronames:1345 SCTID:360457005 The second order neuron fibers of the corticopontocerebellar tracts that cross to the other side of the pons and run within the middle cerebellar peduncles, from the pons to the contralateral cerebellum. UBERON:0022421