Cerebellum Cerebellum External External Configurations Configurations - located in - located in posterior cranial fossa posterior cranial fossa - tentorium cerebelli (cerebrum), 4th ventricle (brain stem - tentorium cerebelli (cerebrum), 4th ventricle (brain stem - communicate with other structure via - communicate with other structure via superior, middle, and inferior cerebellar peduncle superior, middle, and inferior cerebellar peduncle - - longitudinal division longitudinal division Vermis, Paravermal Region, Cerebellar Hemisphere Vermis, Paravermal Region, Cerebellar Hemisphere - - transverse division transverse division Anterior Lobe Anterior Lobe ------------ ------------ primary fissure primary fissure Posterior Lobe Posterior Lobe ------------ ------------ posterolateral fissure posterolateral fissure Flocculonodular Lobe Flocculonodular Lobe