As of the latest update, Google Chrome and Microsoft Edge have made a breaking change to how file uploads are handled. Once your system installs this update, you will not be able to upload new images. Please use another browser until we can get it fixed.

Biceps femoris muscle

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
Anatomy: Lower limb

Anatomy: Lower limb

Share article

Article information

rID: 6031
Section: Anatomy
Tag: muscle
Synonyms or Alternate Spellings:
  • Biceps femoris muscles
  • Biceps femoris

Support Radiopaedia and see fewer ads

Cases and figures

  • Figure 1
    Drag here to reorder.
  • Figure 2
    Drag here to reorder.
  • Figure 3
    Drag here to reorder.
  • Figure 4: popliteal fossa
    Drag here to reorder.
  • Partial tear of B...
    Case 1: biceps femoris - partial tear
    Drag here to reorder.
  • Updating… Please wait.

     Unable to process the form. Check for errors and try again.

     Thank you for updating your details.