The amount of motor cortex devoted to each body area is determined by
A)the size of the body area.
B)the location of the body area.
C)the diversity of movements of the body area.
D)none of these factors.

Question

Quizplus · Accepted Answer

The amount of motor cortex devoted to each body area is determined by the diversity of movements of the body area, not its size or location. This is why areas like the hands and face, which are capable of a wide range of movements, have a disproportionately large representation in the motor cortex.

The Amount of Motor Cortex Devoted to Each Body Area