The right side of the cerebrum controls skeletal muscles on the left side of the body because motor neurons decussate-that is, cross from right to left-in the _________________.

a. mid brain
b. pons
c. medulla oblongota
d. cervical spinal cord
e. cerebral cortex


Answer is c. medulla oblongota (The lateral corticospinal tract is a descending motor pathway that begins in the cerebral cortex, decussates in the pyramids of the lower medulla (also known as the medulla oblongata or the cervicomedullary junction, which is the most posterior division of the brain) and proceeds down.)

Anatomy & Physiology

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