Final answer:
Walking, running, swimming, and other motor activities are examples of voluntary muscle movement controlled by the motor system in the brain.
Step-by-step explanation:
Walking, running, swimming, and other motor activities are examples of voluntary muscle movement. These activities are controlled by the motor system in the brain, which includes the motor cortex, cerebellum, and basal ganglia. The motor system sends signals to the spinal cord, which then activates the appropriate muscle effectors to produce movement.