Motor Homunculus Anatomy Diagram - Brain’s Motor Cortex Mapping #3800235 (License: Personal Use)

The motor homunculus is a distorted human figure representing the relative amount of motor cortex dedicated to controlling specific body parts. Areas like the hands, face, lips, tongue, and vocal apparatus are disproportionately large due to their fine motor control demands, while trunk and leg regions occupy less cortical space. Labels indicate precise somatotopic organization along the precentral gyrus.

Used in neuroscience, neurology, and medical education to teach motor cortex organization; commonly appears in textbooks, lecture slides, and patient education materials explaining stroke effects or brain mapping.