Cerebellum

The cerebellum is the second largest part of the brain located at the back of the head under the cerebrum. 

It has two hemispheres and its surrounded by an outer folded cortex of grey matter and it has an inner core of white matter.

Its the part of the brain responsible for fine movement coordination, balance and equilibrium and muscle tone.

The cerebellum contains over half the nerve cells in the brain.

Damage to the cerebellum leads to loss of coordination, no ability to judge distance, inability to move rapidly .