Cerebellum

Introduction

• Localisation: posterior cranial fossa
• Dimensions:   10 cm wide
                         7 cm thick (4 at the level of the vermis)
                         5 cm high 
• Weight: 140 g
• Anterior cerebellar notch: facing the inferior colliculi and the superior medullary velum
• Posterior cerebellar notch: houses the falx cerebelli
   
  • Lateral view of the brain
  • Posterior view of the cerebellum and brainstem
  • Superior view of the cerebellum and brainstem
• Limits of the cerebellar fossa:
  • Superior: tentorium cerebelli
  • Inferior: occipital and temporal bones
  • Posterior: occipital bone
• Two apertures:
  • Foramen magnum
  • Tentorial notch
  • Midsagittal section
  • Superior view of the inner skull base
• Three pairs of cerebellar peduncles
  • Inferior cerebellar peduncles →  medulla oblongata
  • Middle cerebellar peduncles →  pons
  • Superior cerebellar peduncles →  midbrain