The part of the brain that controls voluntary movement is primarily the motor cortex.
The motor cortex is located in the frontal lobe, at the rear of that lobe, just in front of the central sulcus. It plays a crucial role in planning, controlling, and executing voluntary movements. When you decide to move your arm or leg, the motor cortex sends signals to the muscles to carry out that action.
In addition to the motor cortex, other regions contribute to the control of voluntary movement, such as the basal ganglia and the cerebellum. The basal ganglia help refine movement and smooth out any involuntary motions, while the cerebellum is responsible for coordination and balance.
In summary, while the motor cortex is the key player in initiating voluntary movements, it works closely with other brain structures to ensure our movements are fluid, coordinated, and purposeful.