part of part of cerebellum cerebellum fissure subarachnoid fissure primary fissure of cerebellum FMA:83729 fissura prima cerebelli fissura superior anterior SCTID:314164007 preclival fissure MBA:1103 primary fissure BAMS:pfcb preclival fissure Wikipedia:Primary_fissure_of_cerebellum fissura preclivalis The monticulus of the cerebellum is divided by the primary fissure (or preclival fissure) into an anterior, raised part, the culmen or summit, and a posterior sloped part, the clivus; the quadrangular lobule is similarly divided. UBERON:0014471 NLXANAT:20081253 primary sulcus of cerebellum neuronames:648 HBA:9410 fissura prima