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Extensor Digiti Minimi
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| Extensor Digiti Minimi | |
|---|---|
| Muscle Type | |
| Origin | Common extensor tendon from lateral epicondyle of humerus and deep antebrachial fascia |
| Insertion | Into extensor expansion of little finger, with the extensor digitorum tendon |
| Action | MCPJ extension. Also extension IPJs of little finger in conjunction with lumbricals and interosseous. Also assists in abduction of little finger. |
| Synergists | |
| Antagonists | |
| Spinal innervation | C6, C7, C8 |
| Peripheral Innervation | Radial Nerve |
| Vasculature | |
