The document describes the basic organization and structure of the cerebellum. It is divided horizontally into three zones - a medial zone, paramedial zone, and lateral zone. Vertically it is organized into the cortex and cerebellar nuclei. The cortex covers the different zones and is involved in different functions based on its connections to brainstem nuclei in each zone.

1. CEREBELLUM (nodulus) Lobus flocculo- nodularis (flocculus) Hemispheria

2. medial zone lateral zone Hemispherium CEREBELLUM basic horizontal and vertical arrangement paramedial zone

3. CORTEX AND CEREBELLAR NUCLEI Medial zone - cortex covering vermis + ncll. fastigii Paramedial zone - paramedial cortex + ncll. emboliformes et globosi Lateral zone – lateral cortex + ncl. dentatus Gray mater (cortex + ncll.) and white mater (including pedunculi cerebellares)

4. tr. vestibulocerebellaris tr. pontocerebellaris tr. spinocerebellaris medial zone paramedial zone lateral zone tr. spinocerebellaris tr. cuneocerebellaris

5. CEREBELLUM