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Extensor Digitorum Communis
From WikiMSK
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| Extensor Digitorum Communis | |
|---|---|
| Muscle Type | |
| Origin | Lateral epicondyle of the humerus |
| Insertion | Via 4 tendons to digits 2-5 through the extensor hood to the base of the distal phalanx |
| Action | MCP Extension; extends the PIP joints of fingers 2-5; assists in abduction of fingers 1, 4, 5; assists in the extension and abduction of the wrist. |
| Synergists | Extensor Indicis |
| Antagonists | |
| Spinal innervation | |
| Peripheral Innervation | Posterior Interosseous Nerve (branch of Radial Nerve) |
| Vasculature | |
Palpation
Over the dorsal aspect of the hand as the tendons pass down each finger
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