The Extensor Carpi Ulnaris muscle is a powerful wrist extensor and except for the flexor carpi ulnaris is the only muscle involved in wrist adduction.

Origin

  • Lateral epicondyle of the humerus

Insertion

  • Base of the 5th metacarpal (dorsal side)

Actions

  • Extension of the wrist
  • Ulnar deviation (adduction) of the wrist

Innervation

  • Radial nerve

Daily uses

  • Accelerating a motorbike

How can I stretch it?

How can I strengthen it?

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