Infraspinatus
Musculus infraspinatus
Rotator cuff muscle; the prime mover of external rotation.
- Group
- Shoulder
- Works with
- Teres Minor
- Opposes
- Subscapularis
Function
External rotation and stabilization of the shoulder.
Origin
Infraspinous fossa of the scapula.
Insertion
Greater tubercle of the humerus (tuberculum majus).
Synergists / Antagonists
Atlas set · written by hand
Movements with hand-written form cues and common mistakes.