Based on the motor homunculus, which of the following body regions has the fewest number of motor unitsinvolved?
A) tongue
B) face
C) hands
D) back trunk

Question

Quizplus · Accepted Answer

The motor homunculus is a visual representation of the body within the brain, illustrating the amount of cortical area devoted to controlling movements of different body parts. The back/trunk has fewer motor units involved compared to the tongue, face, and hands, which are represented by larger areas in the motor cortex due to their need for precise movements.

Based on the Motor Homunculus, Which of the Following Body