Cerebellum function definition

Many people are not aware of this fact, but the human body can survive without the cerebellum. Although there are rare the cases in which the small brain needs to be surgically removed, it’s generally accepted by the medical society that the body can live without it, not without some sort of consequences. The small brain has lots of functions and is involved in several processes. When and if it is removed from the skull, the body will enter in an asthenia state, in which it will have difficulties in doing fine movements, maintaining balance or even coordinating correctly the voluntary movements. However, after a while, the cerebrum compensates the loss of the small brain and takes over its functions.

Cerebellum DefinitionKnowing this, we can easily extract the definition of the cerebellum functions. Basically, the small brain is implicated in:

  • Maintaining the balance and the posture. This is made with the help of the vestibular receptors and some motor neurons that tell the skeletal muscles exactly what to do in order to maintain balance;
  • Coordinating the voluntary moments. Many people believe that the cerebellum is the center of the movement. IT IS NOT. The motor nuclei are in the frontal lobe. They are the only ones that stimulate the motor actions; as for the small brain, it rather helps the body to move properly in order to not harm itself or to walk in a biped posture;
  • Motor execution meaning that the cerebellum plays a major role in how the body understands to perform an motor action, such as catching a ball or lifting a weight and put in a specific place;
  • Language learning and other cognitive processes.

In terms of anatomy, there is a biological paradox with the small brain: although it is almost ten times smaller than the cerebrum, it has a relatively equal number of neurons as the cerebrum. It is therefore one of the most important structures of the neuronal cells.

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