Horizontal fissure of cerebellum
The largest and deepest fissure in the cerebellum is named the horizontal fissure (or horizontal sulcus).It commences in front of the pons, and passes horizontally around the free margin of the hemisphere to the middle line behind, and divides the cerebellum into an upper and a lower portion.This article incorporates text in the public domain from page 789 of the 20th edition of Gray's Anatomy (1918)This neuroanatomy article is a stub.You can help Wikipedia by expanding it.