Which parts of the body have the greatest representation on the primary motor cortex?

Question

Quizplus · Accepted Answer

The hands and facial muscles have the greatest representation on the primary motor cortex, occupying a larger area than other body parts such as legs and arms, head and neck, chest and back. This is often referred to as the motor homunculus or "little man," which represents the different body parts in the primary motor cortex based on their size and complexity of movement.

Which Parts of the Body Have the Greatest Representation on the Primary