According to the hierarchy of motor control,
A)the highest level of control consists entirely of neurons in the primary motor region of the cerebral cortex.
B)the middle level of control does not involve any areas of the cerebral cortex.
C)the local level of control includes the cerebellum and basal nuclei.
D)structures in the middle level receive information from both the higher and the local levels of the hierarchy.
E)afferent information from skin,joint,and muscle receptors cannot modify a movement once it has been initiated by a motor program from the middle level of the hierarchy.
