a narrow notch between the cerebellar hemispheres posteriorly, occupied by the falx cerebelli. Synonym(s): incisura cerebelli posterior, marsupial notch, posterior notch of cerebellum {{http://www.3dneuroanatomy.com/wp-content/uploads/2013/03/tva9.jpg}} http://www.3dneuroanatomy.com/wp-content/uploads/2013/03/tva9.jpg bvl: biventral lobule; cmf: [[cerebellomedullary fissure]] Ivv: [[inferior vermin vein]]; pci: [[posterior cerebellar notch]] or incisura; T: [[tonsil]]; V: [[vallecula of the cerebellum]]; M: medulla.