John asked in Science & MathematicsBiology · 1 decade ago

How come the brain can coordinate such a vast amount of muscular movement at the same time?

How does it bring it all together?

1 Answer

  • Anonymous
    1 decade ago
    Favorite Answer

    By using a vast amount of nerves and brain pathways. The control of voluntary movements almost take up the entire neocortex, but in a simplified version control of moments goes something like this:

    Three main areas in the frontal lobe is involved in motor control. First you have the primary motor cortex (PMC), the area actually responsible for moving your muscles. Rostal to the PMC you have premotor area, responsible for guiding the bodies movements by using inputs from other sensory systems, like vision. You also have the supplementary motor area (SMA), responsible for planning the complex movements and coordinating movements involving both hands.

    The other two main areas of importance is the basal ganglia and the cerebellum. The basal ganglia have connections to several parts of the cortex, and works by putting all information together, as well as checking that a movement actually is possible and blocking them if they are not. Cerebellum stores learned movements (like how to swing a glof club for example) and fine tunes and coordinates movements so they go smoothly. So both these areas acts as relay stations, were the movements are checked and fine tuned before they are actually executed.

    But remember that this is only for voluntary movements. A lot of our muscle movements are completely involuntary, and works by different circuits. The answer to how the brain can control them all would be the same though. A vast amount of the brains function is to control movements, and several areas make sure that movements that clashes are blocked, and that the movements that do get executed run smoothly.

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