The zygomaticus major muscle is a muscle that controls facial expression, drawing the mouth’s angle upward and outward. The zygomaticus major muscle starts at the cheekbone and extends to the corner ...

Cheek dimples are likely a genetic trait, although the specifics of how they’re inherited still aren’t clear. Share on Pinterest Dimples are small indentations that can be found on your skin. They can ...

Dimples form due to a split zygomaticus major muscle and create skin indentations when smiling. This inherited trait has a complex, not fully understood genetic basis. Tap to read!