Simple body movements, whether we refer to walking or just shaking hands are determined by the primary motor cortex, that is located in the frontal lobe. The neurons link the cortex to the brain stem and then to the spinal cord, innervating the skeletal muscles (but not only). If damage occurs within the area of the motor cortex, motor neuronal diseases might occur and people might lose their muscular tonus and power or even get different levels of paraly