Biceps femoris muscle

Last revised by Craig Hacking on 5 Jun 2021

The biceps femoris is one of the large muscles in the posterior compartment of the thigh and a component of the hamstrings. It has a long and a short head, each with different functions and innervation.

Its medial border forms the superolateral border of the popliteal fossa.


Variant anatomy

  • absence of the short head 2
  • exclusive tibial insertion (rare) 3

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Cases and figures

  • Figure 1
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  • Figure 2
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  • Figure 3
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  • Case 1: biceps femoris - partial tear
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