Supraspinatus
Rotator cuff muscle · Shoulders
- Origin
- Supraspinous fossa of the scapula
- Insertion
- Greater tubercle of the humerus (superior facet)
- Action
- Assists the deltoid in abducting the arm and holds the humeral head in the socket
One of the four rotator cuff muscles. It sits above the spine of the scapula, under the trapezius, and works with the deltoid to raise the arm to the side.