This interactive visualization displays the human nervous system as a detailed 3D model, featuring the central and peripheral nervous systems, spinal cord, and neuron structures. The visualization uses Three.js for 3D rendering, with OrbitControls for navigation and CSS2DRenderer for dynamic labels. Users can rotate, zoom, and click on any anatomical structure to view its function in an information panel. A dropdown menu switches between different nervous system views, and buttons toggle additional details or neuron-specific visualizations. The code defines over a dozen brain region objects, including the cerebral cortex, amygdala, and hippocampus, each with positional data, scale, color, and explanatory text.