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The cerebellum




 
Lecture text
The position of the cerebellum Situated in the posterior cranial fossa Covered superiorly by the tentorium cerebelli Lies posterior to the 4th ventricle, pons & medulla oblongata Cerebellum has 2 hemispheres & they are joined by the vermis It’s connected to the brainstem by the superior, middle & inferior cerebellar peduncles Cerebellum has 3 lobes : Anterior, Middle (Largest) & Flocculonodular lobe Cerebellum has an outer covering of grey matter (Cortex) & inner white matter Cortex (The grey matter) The white matter White matter is made up of 3 groups of fibers Intrinsic fibers : Don’t leave the cerebellum, but connect different parts of the organ Afferent fibers : Proceed to the cerebellar cortex Efferent fibers : Constitute the output of the cerebellum 4 masses of grey matter are embedded in the white matter forming intra cerebellar nuclei (Lateral to medial) Dentate nucleus : Axons form the superior cerebellar peduncle Emboliform nucleus : Axons form the superior cerebellar peduncle Globose nucleus : Axons form the superior cerebellar peduncle Fastigial nucleus : Axons form the inferior cerebellar The cerebellum (Superior view) The lobes of the cerebellum Positions of the intra cerebellar nuclei

The cerebellum

  1. The cerebellum I
  2. The cerebellum II
The cerebellum The cerebellum Reviewed by Radiology Madeeasy on March 07, 2012 Rating: 5
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