Popliteal fossa

Poplipteal Fossa:


  • At the back of the thigh.
  • Forms a hollow when the knee is flexed and bulges slightly when the knee is fully extended.
  • Posterior to lower third of the femur, the knee joint and upper part of the tibia.





Biceps femoris above, plantaris and lateral head of gastrocnemius below.

Semimembranosus and semitendinosus above, medial head of gastrocnemius below.

Floor (Anteriorly)
Popliteal surface of femur, the oblique popliteal ligament, the back of the tibia and the fascia covering the popliteus.

Roof (Posteriorly)
The poplipteal fascia.

Bony boundaries

The medial and lateral supracondylar lines above, and soleal line below.


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