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The folium vermis is a short, narrow, concealed band at the posterior extremity of the vermis, consisting apparently of a single
folium Folium ( la, folium, "leaf") may refer to * a leaf of a book: see recto and verso * Folium of Descartes, an algebraic curve * Folium (spider), a marking on the abdomen of a spider Brain anatomy * Folium (brain) * Folium vermis Botany * Turnsole ...
, but in reality marked on its upper and under surfaces by secondary fissures. Laterally, it expands in either hemisphere into a considerable
lobule In anatomy, a lobe is a clear anatomical division or extension of an organ (as seen for example in the brain, lung, liver, or kidney) that can be determined without the use of a microscope at the gross anatomy level. This is in contrast to t ...
, the superior semilunar lobule (lobulus semilunaris superior; postero-superior lobules), which occupies the posterior third of the upper surface of the hemisphere, and is bounded below by the horizontal sulcus. The superior semilunar lobules and the folium vermis form the lobus semilunaris.


Additional Images

File:Slide2AST.JPG, Cerebellum. Superior surface. File:Slide3AST.JPG, Cerebellum. Superior surface.


References

Cerebellum {{neuroanatomy-stub