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 is an indicator of having a weak Serratus anterior.
- 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
How can I strengthen it?