The Brachioradialis muscle acts to supinate the forearm from a pronated position, when it flexes the elbow. When starting in a supinated position, it acts to pronate the hand as it flexes the elbow.

 Origin

  • Lower 2/3 of the lateral supracondylar ridge of the humerus

Insertion

  • Styloid process of the radius

Actions

  • Elbow flexion
  • Pronation
  • Supination

Innervation

  • Radial nerve

Daily uses

  • Turning a corkscrew

How can I stretch it?

How can I strengthen it?

Elbow Joint Muscles:

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Supinator

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Brachialis

The brachialis acts to flex the elbow whether in pronation or supination, along with Biceps brachi. As Brachialis is attached to the Ulna, which cannot rotate, it is the only true flexor of the elbow.

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