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any part of your body that can move has to do with muscles, so yes
A belly dance is a dance traditional to the Middle East which is characterized by movement of the abdominal muscles.
Transversus Abdominus & Rectus Abdominus
The intercostal muscles, (muscles between the ribs), contract.
genioglossus, geniohyoid, omohyoid, digastric anterior belly, hyoglossus