=====Tela chorioidea of the fourth ventricle=====
{{::foramen_of_magendie.jpg|}}

Fm: [[Foramen of Magendie]]; imv: [[inferior medullary velum]]; icp: [[inferior cerebellar peduncle]]; pica: [[posterior inferior cerebellar artery]] (third and forth segments) tc: [[tela chorioidea]]; tvj: telovelar junction ( yellow discontinous line).

In the [[telovelar approach]], the [[cerebellomedullary fissure]] (CMF) is exposed and access to the ventricle is obtained by incising the [[tela chorioidea]] and [[inferior medullary velum]]. This approach enables the exploration of the entire ventricle cavity from the [[obex]] to the [[aqueduct]].