Cerebellum is concerned with the
a)	Contraction of voluntary muscles	b)	Coordinating and regulation muscles tone
c)	Maintaining posture orientation and equilibrium of body	d)	All of the above

(d)

Cerebellum, also called as little brain is very large and well developed, as man performs a wide range of movements. It forms about one-eight of the brain mass.

It is located below the posterior cerebral hemisphere and above the medulla. It is the second largest part of the brain. It maintains posture, equilibrium and muscle tone. It coordinates the voluntary movements initiated by the cerebrum