Answer:
CNS or the central nervous system includes the neurons of the spinal cord and the brain.
The spinal cord and the brain plays important role in perceiving the signals from the body organs like a muscular system which comprises of skeletal, cardiac and smooth muscles.
The sensory neurons send the signals to the brain through the spinal cord where thalamus which acts as the relay center process the signals and sends the signals back through the motor neurons.
Thus, CNS thus plays an important role in the muscular movements.