👉 Rictals are a type of cranial nerve that is responsible for controlling the movement and tone of the facial muscles. The rictus muscle, which is located in the back of the skull, controls the movements of the face and mouth. When this muscle contracts, it sends signals to the brain, causing the eyes to move upward and downward, the nose to turn forward or backward, and the lips to move up and down. This movement helps to create facial expressions such as smiling, laughing
