Zygomaticus major

The zygomaticus major is a facial muscle that helps you smile. It extends from the cheekbone (zygomatic bone) down to the corners of your mouth. When it contracts, it pulls the corners of your mouth upward and outward, creating a smile or laughter expression. This muscle plays a key role in facial expressions related to happiness and amusement. It works in coordination with other facial muscles to communicate emotions and enhance social interactions. Its function is essential not only for expressing feelings but also for nonverbal communication.