The video begins with a colorful image of a human brain with various colors representing different parts of the brain. The image then fades into a black and white silhouette of a person's head and neck, with the brain and spinal cord clearly visible. The silhouette is shown from the side, with the brain and spinal cord in white against a black background. As the video progresses, the brain and spinal cord are shown in different colors, including pink, yellow, and blue. The silhouette remains the same throughout the video, and the colors of the brain and spinal cord change in a patterned sequence.