What Are Dimples?
What Is the Zygomaticus Major?
The zygomaticus major is a facial muscle that helps control facial expressions. It does this by drawing the mouth upward and outward. When a person smiles or laughs, they're making use of this large facial muscle.
The zygomaticus major starts at the cheekbone and extends to the corners of the mouth. A split in this major facial muscle is responsible for creating the indentation known as a dimple. There can be slight variations in the position of the zygomaticus major, which affects face shape.
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