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Encyclopedia > Extensor carpi radialis longus muscle

Extensor carpi radialis longus is one of the five main muscles that control movement at the wrist.


As the name suggests, this muscle is an extensor at the wrist joint, and travels along the radial side of the arm, so will also abduct the hand at the wrist.


This muscle is quite long, starting on the lateral side of the humerus, and attaching to the base of the 2nd metacarpal.


Being an extensor contained in the forearm, it is innervated by the radial nerve.


It initially runs along with brachioradialis, but becomes mostly tendon early on, running between brachioradialis and extensor carpi radialis brevis.


Blood is supplied by the radial artery.


  Results from FactBites:
 
Extensor carpi radialis longus muscle (104 words)
Extensor carpi radialis longus is one of the five main muscles that control movement at the wrist.
As the name suggests, this muscle is an extensor at the wrist joint, and travels along the radial side of the arm, so will also abduct the hand at the wrist.
Being an extensor contained in the forearm, it is innervated by the radial nerve.
Extensor carpi radialis brevis muscle (66 words)
Extensor carpi radialis brevis is an extensor, and an abductor of the hand at the wrist joint.
It lies medial to longus, and is slightly shorter.
Like all the muscles in the posterior forearm, ECR brevis is supplied by a branch of the the radial nerve.
  More results at FactBites »

 
 

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