Always and completely ipsilateral

Vestibulocerebellum (Archicerebellum) - Flocculonodular lobe, part of vermis. Balance and eye movements

  • Spinocerebellum (Paleocerebellum) - Lateral decending motor execution
  • Vermis - Medial decending motor execution
  • Cerebrocerebellum (Neocerebellum) - motor planning

  • Spinocerebellar tracts enter via ICP

  • Olivocerebellar afferents from contralateral olivary nucleus via ICP

  • Pontocerebellar afferents from contralateral potine nucleus via MCP

  • Outputs through SCP decussation

  • Crosses over mid-line as fibres have already decussated before reaching cerebellum