Final answer:
Motor functions are not primarily controlled by the meninges; key regions include the frontal lobe, cerebellum, basal ganglia, and brainstem.
Step-by-step explanation:
The motor functions of the brain are largely controlled by several key regions; however, motor functions are not primarily controlled by the meninges, which are the protective membranes surrounding the brain and spinal cord. Major areas responsible for motor functions include the frontal lobe (specifically the primary motor cortex), the cerebellum, the basal ganglia, and the brainstem. The frontal lobe is crucial for initiating movement, as it contains the precentral gyrus, which directly connects to cranial and spinal motor neurons. Abilities such as planning movements, controlling the eyes with the frontal eye fields, and producing speech through Broca's area also fall within the domain of the frontal lobe. In contrast, the meninges provide protection and are not involved in controlling movement.