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Coracobrachialis
From WikiMSK
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| Coracobrachialis | |
|---|---|
| Muscle Type | |
| Origin | Apex of coracoid process of scapula |
| Insertion | Medial surface of middle of shaft of humerus, opposite deltoid tuberosity |
| Action | Flexion and adduction of shoulder joint |
| Synergists | |
| Antagonists | |
| Spinal innervation | C6, C7 |
| Peripheral Innervation | Musculocutaneous Nerve |
| Vasculature | |
Manual Muscle Test
Test: Shoulder flexion in lateral rotation. The elbow is completely flexed and the forearm is supinated. This position shortens the biceps reducing assistance.
Pressure: Against anteromedial surface of lower 1/3 of humerus, into extension and slight abduction.
