Tags: Anatomical Structure, Brain.
The folium vermis is a short narrow concealed band at the posterior extremity of the vermis consisting apparently of a single folium but in reality marked on its upper and under surfaces by secondary fissures. Laterally it expands in either hemisphere into a considerable lobule 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.
