Updated: 11/4/2021

Extensor Carpi Radialis Brevis

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Summary

Origin Lateral epicondyle of humerus
Insertion Base of 3rd metacarpal
Action Extend and abduct hand at wrist joint
Innervation Deep branch of radial nerve (C7 and C8) (C7, C8)
Arterial Supply Radial artery

Clinical conditions
1. PIN Compression Syndrome 

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