The part of the brain that regulates voluntary skeletal muscle movements is primarily found in the frontal lobe, specifically in an area known as the primary motor cortex.
The primary motor cortex is located at the back of the frontal lobe and is responsible for planning, controlling, and executing voluntary movements. Each region of the motor cortex is associated with different parts of the body, and this organization means that specific movements are finely controlled through this cortical area.
When we decide to move a muscle, signals are sent from the primary motor cortex through the spinal cord and out to the peripheral nerves, which then activate the skeletal muscles. This complex process involves not just the primary motor cortex but also other areas of the brain, including the premotor cortex and supplementary motor area, which help plan and coordinate movements.