Extensor Carpi Radialis Brevis

Extensor Carpi Radalis Brevis (often abbreviated to ECRB) is the shorter of the two extensor carpi radialis muscles which are found in the forearm and extend the wrist. The word brevis means short in latin.

Origin

  •  Lateral epicondyle of the humerus.

Insertion

  • Base of the 3rd metacarpal (dorsal side). 

Actions

  • Extension of the wrist. 
  • Radial deviation (abduction) of the wrist. 

Innervation

  •  Radial nerve. 

Daily uses

  • Typing. 

Example strengthening exercises

Examples stretches

Related injuries

Related muscles