Brachioradialis

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.  

Example strengthening exercises

  • Bicep curls using a resistance band.  

Related muscles

  • Biceps brachii.  
  • Brachialis.