External structures Central lobule Anterior lobe Inferior surface Superior vermis -Wing of central lobule Lingula(I) -Superior Superior medullary velum Middle Cerebellar peduncles Inferior Flocculus (HX) Flocculonodular lobe 4th ventricle Posterolateral(dorsolateral) Inferior medullary velum fissure Nodule (X) Retrotonsillar fissure Inferior Uvula(IX)- Posterior lobe vermis -Tonsil Pyramid (VIll) Biventer lobule (H VIlI) Tuber(VII B) Secondary(postpyramidal) fissure Posterior cerebellar notch Horizontal fissure Inferior semilunar (caudal)lobule (H VII B) Lobules of cerebellum:Anterior lobe,posterior lobe,flocculonodular lobe. Posterolateral fissureExternal structures Lobules of cerebellum: Anterior lobe, posterior lobe, flocculonodular lobe. Posterolateral fissure