What plays a key role in mediating performance of fine,discrete,voluntary movements of the hands and fingers?

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The corticospinal system plays a key role in mediating performance of fine, discrete, voluntary movements of the hands and fingers. It consists of the corticospinal tracts originating from the motor cortex of the brain and descending through the spinal cord to control movement of the limbs and digits. This system is particularly important for the generation and maintenance of fine motor control of the hands and fingers.

What Plays a Key Role in Mediating Performance of Fine,discrete,voluntary