Biceps brachii muscle

The biceps brachii muscle (also known simply as biceps) is a two-headed muscle in the anterior compartment of the arm that flexes at the elbow and supinates the forearm.


Variant anatomy

  • duplicated long head of biceps tendon: can mimic longitudinal tear
  • bifid/bifurcated insertion: anatomic variant that arises from persistent division between the short head and long head of the distal biceps brachii tendon
  • accessory head of long head of biceps tendon
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