The primary motor projection area forms a "map" of the body and the projections control movement to specific areas of the body. The amount of cortical tissue dedicated to different parts of the body correlates with

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The amount of cortical tissue dedicated to different parts of the body correlates with the precision of movement for the body part. This means that areas of the body that require finer, more precise movements (such as the hands or face) have larger areas of cortical tissue dedicated to them compared to areas that require less precise movements (such as the trunk or legs). The size of the body part or its distance from the brain does not influence the amount of cortical tissue dedicated to it.

The Primary Motor Projection Area Forms a "Map" of the Body