HIND BRAIN -

1.       CEREBELLUM -

1. Little part, lies below the posterior part of cerebrum & above the medulla oblongeta.
2. It conists of median lobe vermis & 2 lateral lobes or cerebellor hemispheres.
3. In 2 lateral lobes 2 arbra vittae or life tree of white matter is present. In vermis 1 arbra vittae is present so total arbra vittae are 3. Surrounded by cerebral cortex.
4. In cerebellum flask shaped cells are purkenje's cells.

FUNCTIONS-

Equilibrium. Movement of muscles in walking.

Note :- Cerebellum is more developed in aves.