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Teres Minor
From WikiMSK
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| Teres Minor | |
|---|---|
| Muscle Type | |
| Origin | Upper 2/3 dorsal surfaces of lateral border of scapula |
| Insertion | Lowest facet of greater tubercle of humerus and shoulder joint capsule |
| Action | Externally rotates shoudler joint, stabilises head of humerus in glenoid cavity during should movement. |
| Synergists | |
| Antagonists | |
| Spinal innervation | C5, C6 |
| Peripheral Innervation | Axillary Nerve |
| Vasculature | |
Manual Muscle Testing
Teres Minor (? plus some Infraspinatus)
Patient: Supine
Fixation: Counterpressure applied against medial aspect of distal humerus, to ensure rotation.
Test: External rotation of humerus. The elbow is at 90 degrees
Pressure: Use the forearm as a lever to apply internal rotation force
