The limb regions of the motor homunculus are involved in activating motor neurons that move the arms, hands, and legs primarily on the _____, and the trunk regions of the motor homunculus are mainly involved in activating motor neurons that move the trunk primarily on the _____.
A)same side of the body; opposite side of the body
B)opposite side of the body; same side of the body
C)same side of the body; same side of the body
D)opposite side of the body; opposite side of the body

Question

Quizplus · Accepted Answer

The motor homunculus is organized such that the limb regions control movements on the opposite side of the body (contralateral control), while the trunk regions have more bilateral or ipsilateral control.

The Limb Regions of the Motor Homunculus Are Involved in Activating