A "motor homunculus" can be visualized as an overlay on the precentral gyrus. The reason why the facial region of this homunculus covers such a large surface area is because
A) our ears are large for hearing.
B) our eyes are large for seeing.
C) we have very expressive faces.
D) we have very sensitive lips.

Question

Quizplus · Accepted Answer

The facial region of the motor homunculus covers a large surface area because humans have very expressive faces, with many muscles capable of subtle movements and conveying emotions.

A "Motor Homunculus" Can Be Visualized as an Overlay on the Precentral