Popliteal Fossa

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  • diamond shaped intermuscular space at back of knee
  • most prominent when knee flexed
  • contains
    • popliteal vessels
    • small saphenous vein
    • common peroneal and tibial nerves
    • posterior cutaneous nerve of thigh
    • genicular branch of obturator nerve
    • connective tissue
    • lymph nodes

Boundaries

  • laterally
    • biceps femoris (above)
    • lateral head of gastrocnemius and plantaris (below)
  • medially
    • semimembranosus (above)
    • semitendinosus (above)
    • medial head of gastrocnemius (below)
  • anterior wall / floor
    • popliteal surface of femur
    • posterior ligament of knee joint
    • popliteus
  • posterior wall / roof
    • skin
    • superficial fascia
    • deep fascia of thigh
 

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