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Stack #61641 rotator
Stack #61641- Mass 292 week 2 rotator cuff and teres major
| muscle | origin | insertion | action | nerve |
|---|---|---|---|---|
| Infraspinatus | infraspinous fossa of scapula | greater tubercle of humerus | laterally rotates and adducts arm at shoulder | suprascapular |
| Supraspinatus | supraspinous fossa of scapula | greater tubercle of humerus | ASSISTS DELTOID IN ABDUCTING ARM at shoulder | subscapular |
| Teres major | inferior angle of scapula | medial lip of intertubercular sulcus of humerus (humerus) | extends arm at shoulder and assists in adduction and medial rotation of arm at shoulder | lower subscapular |
| Teres minor | inferior lateral border of scapula | greate tubercle of humerus | laterally rotates, extends, and adducts arm at shoulder | axillary |
| Subscapularis | subscapular fossa of scapula | lesser tubercle of humerus | medially rotates arm at shoulder | upper and lower subscapular |