Symmetrical Movements of Paired Facial Structures,such as the Lips,are Made

Multiple Choice

Symmetrical movements of paired facial structures,such as the lips,are made possible by the:

A) communication between hemispheres made possible by the corpus callosum
B) contralateral innervation of the lower motor neurons by upper motor neurons
C) same mechanisms that allow for coordinated movement of the hands
D) bilateral innervation of the lower motor neurons by upper motor neurons