Answer :
The motor skills for performing fine type of movements require the specific activity of the D. corticospinal pathway.
The corticospinal pathway has to be active in order to produce the fine motor skills required to carry out precise movements. The corticospinal tract is crucial for voluntary motor control, especially fine movements.
Most of the axons in this pathway originate in the primary motor cortex, descend through the brainstem, and synapse with motor neurons in the spinal cord. This pathway is essential for coordinating precise movements such as those needed for playing a musical instrument or writing.
