The cerebellar cortex is the thin, tightly folded outer grey matter of the cerebellum. Despite its small size it holds more neurons than the rest of the brain combined, arranged in three uniform layers.
| Location | Surface of the cerebellum, folded into thin folia |
|---|---|
| Parts |
|
| Connections |
|
| Blood Supply | Superior cerebellar artery; Anterior inferior cerebellar artery; Posterior inferior cerebellar artery |
Compares intended and actual movement and fine-tunes timing, coordination, balance and motor learning.
Purkinje cells are vulnerable to alcohol, low oxygen, some drugs and autoimmune attack. Damage causes unsteady gait, poor coordination, slurred speech and nystagmus on the same side as the lesion.
Loss of Purkinje cells, mainly in the anterior vermis, causing a wide-based unsteady gait.
Immune attack on Purkinje cells triggered by a hidden cancer.
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