Thursday, 24th May 2018
24 May 2018
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Functions of Cerebellum – Anatomy

Functions of Cerebellum

Functions of Cerebellum

The cerebellum controls the seam side of the body. Its influence is ipsilateral. This is the in marked contrast to another part of the brain most of which control the opposite half of the body. Functions of the cerebellum are that it coordinates voluntary movements so that they are smooth, balanced and accurate.

The cerebellum controls tone, posture, and equilibrium. This is chiefly done by the archicerebellum and paleocerebellum.

Flocculonodular lobe is connected to vestibular nuclei. It is involved in the maintenance of muscle tone and posture Spinocerebellum, vermis and intermediate regions receive afferents from motor cortex via cortical – pontocerebellar fibres.

All sensory information of muscles and thus maintains posture, Paramedian areas are involved in the control of a distal group of muscles to bring smooth coordinated activity.

Cerebellum functions as “comparator’. It receives information from cerebrum and spinal cord. it corrects and modifies ongoing movements through thalamocortical projections, reticulospinal and rubrospinal tracts.

Neocerebellum is responsible for fine tuning of motor performance for precise movements. It helps in planning and production of skilled movements along with cerebrum.

It has been seen by functional magnetic resonance that if fingers of a right hand are moved repetitively the activity is seen in precentral gyrus of a left cerebral cortex and in the anterior quadrangular lobule of right cerebellum hem shape.

The cerebellum receives information from the sensory systems, the spinal cord, and other parts of the brain and then regulates motor movements. The cerebellum coordinates voluntary movements such as posture, balance, coordination, and speech, resulting in smooth and balanced muscular activity.


Cerebellum develops from the neurons of the alar lamina of mesencephalic part of the rhombencephalon vesicle. These neurons migrate dorsally and from the rhombic lip which forms the cerebellum. The earliest part to develop is the archicerebellum. In its center, the paleocerebellum develops, splitting the archicerebellum parts into two parts. Lastly, the paleocerebellar part is also split by the development of neocerebellum in its center.

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