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The Serratus Anterior muscle is used in activities which draw the scapula forwards. It is used strongly in push-ups and bench presses. Winged scapula are an indicator of having a weak Serratus Anterior muscle.
- Upper nine ribs at the side of the chest
- Costal aspect (side articulating with the ribs) of the medial border of the scapula
- Scapula protraction
- Rotation of the scapula upwards
- Long thoracic nerve
- Reaching up to open a high window