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Extensor Carpi Radialis Longus
Region: Forearm & Hand Muscles · All forearm & hand muscles
Extensor Carpi Radialis Longus at a glance
| Origin | Lateral supracondylar ridge of the humerus |
|---|---|
| Insertion | Base of the second metacarpal |
| Actions | Straightens the wrist (extension); Tilts the hand toward the thumb side (radial deviation) |
| Nerve supply | Radial nerve (C6–C7) |
◆ Good to know
Working with its brevis partner it locks the wrist back so the finger flexors can grip strongly.
More Forearm & Hand Muscles
Please note: This page is an anatomy education summary for students and curious readers, not medical advice. Attachment points are given in their classic short form; individual anatomy varies, and detailed dissection-level descriptions belong in an anatomy atlas.